What is chemical energy and how does it work ?
ty in advance ​

Answers

Answer 1

Answer:

Chemical energy is defined as. the energy which is stored in the bonds of chemical compounds (molecules and atoms).

Explanation:

Chemical energy may be released during a chemical reaction

Answer 2

Answer:

Chemical energy is the energy stored in the chemical bonds of Compound.

It's used during chemical Reactions.


Related Questions

An ion of a single pure element always has an oxidation number of ________. a. 1 b. magnitude equal to its atomic number c. 0 d. none of these

Answers

The oxidation state of a pure element is always zero.

The oxidation state for a pure ion is equivalent to its ionic charge.

What is oxidation state?

The oxidation state or oxidation number, is the hypothetical charge of an atom if all of its bonds to different atoms were fully ionic. The oxidation state may be positive, negative or zero.

What are the rules to write the oxidation number?

1. The atoms in pure elements have oxidation number of ZERO.

2. The more-electronegative element in a binary molecular compound is assigned the number equal to the negative charge it would have as an anion. The less-electronegative element is assigned the number equal to the positive charge it would have as a cation.

3. Fluorine always has an oxidation number of -1 in compounds because it is the most electronegative element.

4. Oxygen is usually -2 unless in peroxides (then it is -1) or with fluorine.

5. Hydrogen has +1 in all compounds containing elements that are more electronegative than it, and is -1 in compounds with metals.

6. The algebraic sum of the oxidation numbers of all atoms in a neutral compound is zero.

7. The algebraic sum of the oxidation numbers of all atoms in a polyatomic ion is equal to the charge of the ion.

8. Although rules 1-7 apply to covalently bonded atoms, oxidation numbers can also be assigned to atoms in ionic compound. Monoatomic ions have oxidation numbers equal to their ionic charge.

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A thorium-232 nucleus decays by a series of alpha and beta emissions until it reaches astatine-212. how many alpha emissions and how many beta emissions occur in this series of decays?

Answers

There are 5 alpha and 5 beta particle  emit emission of thorium-232 nucleus into astatine-212.

A beta ray would be released from such an atomic nucleus during a radioactive decay process known as beta decay. The proton in the nucleus changes from a proton to a neutron throughout beta decay, and vice versa.

It is given that, The atomic mass of Th = 232

Atomic mass of astatine = 212

Atomic number of Th = 90.

Atomic number of  astatine = 85

Number of alpha particle = difference between atomic mass / 4

Number of alpha particle = 232-212 /4

Number of alpha particle = 20/4

Number of alpha particle = 5

Thus, the number of alpha particle will be 5.

Number of beta particle = difference between atomic number

Number of beta particle = 90-85

Number of beta particle = 5

Thus, the number of beta particle will be 5

Therefore, the number of alpha and beta particle will be 5 and 5.

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When a nonmetal bonds with a nonmetal: When a nonmetal bonds with a nonmetal: a molecular compound forms. a covalent bond is involved. electrons are shared. all of the above are true none of the above

Answers

When a nonmetal bonds with a nonmetal, a covalent bond is involved. Details about non-metals can be found below.

What is a nonmetal?

A nonmetal is an element, such as phosphorus or chlorine, that does not have the chemical or physical properties of a metal.

A metal is known to lose or donate electrons when it goes into a reaction, hence, an electrovalent bond is usually formed.

However, a nonmetal is known to accept or gain electrons when it goes into reactions. This means that when two nonmetals bonds in a chemical reaction, a covalent bond is formed between them.

Covalent bond is a type of chemical bond where two atoms are connected to each other by the sharing of two or more electrons.

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1. One of the uses of methanol, CH3OH (also known as methyl alcohol, wood alcohol and
methyl hydrate), in diluted form is windshield washer antifreeze. In pure form methanol has
a molar concentration of 24.7 mol/L. Using a table from the CRC Handbook of Chemistry
and Physics, a student prepared 8.0 L of 10.0 mol/L aqueous methanol as windshield washer
-30°C. What volume of methanol was necessary to prepare the
antifreeze good for
antifreeze solution?

Answers

The volume of methanol necessary to prepare the antifreeze good for antifreeze solution is 3.2 L

Dilution formula

M₁V₁ = M₂V₂

Where

M₁ is the molarity of stock solution V₁ is the volume of stock solution M₂ is the molarity of diluted solution V₂ is the volume of diluted solution

Data obtained from the question Molarity of stock solution (M₁) = 24.7 mol/LVolume of diluted solution (V₂) = 8 LMolarity of diluted solution (M₂) = 10 mol/L Volume of stock solution needed (V₁) = ?

How to determine the volume needed

The volume of the methanol necessary to prepare the solution can be obtained as illustrated below:

M₁V₁ = M₂V₂

24.7 × V₁ = 10 × 8

24.7 × V₁= 80

Divide both side by 24.7

V₁ = 80 / 24.7

V₁ = 3.2 L

Thus, the volume of methanol necessary to prepare the antifreeze good for antifreeze solution is 3.2 L

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If the sodium oxide (Na2O) in soda-lime glass was replaced by potassium oxide (K2O), this would result in . . .

Answers

it would result in a explosion

Please answer this question for grade 9

Answers

To convert oxygen gas to solid, we need to continuous withdrawal of heat from the gas by cooling.

What makes up matter?

Matter is composed of particles and these particles that compose matter are always in constant motion. This is the main thrust of the so called Kinetic Theory of Matter.

Now we know that the particles that compose a solid are held in a fixed position thus they spread out or expand when heated. The particles of a liquid tend not to be held in fixed positions thus they can be poured.

Given that oxygen has a boiling point of -219°C and a freezing point of -183°C, it follows that at 0°C is a gas and at -200°C, oxygen is a liquid.

To convert oxygen gas to solid, we need to continuous withdrawal of heat from the gas by cooling.

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How many hydrogen bonds exist between this DNA strand and its complementary strand?
5'-TCCGGAG-3'

Answers

Answer:

19 hydrogen bonds

Explanation:

Between every thymine and adenine, there are 2 hydrogen bonds.

Between every guanine and cytosine, there are 3 hydrogen bonds.

Since there are 2 total thymines and adenines, they contribute 4 hydrogen bonds overall.

-----> 2 H bonds x 2 nucleotides = 4 H bonds

Since there are 5 total cytosines and guanines, they contribute 15 hydrogen bonds overall.

-----> 3 H bonds x 5 nucleotides = 15 H bonds

Therefore, there are 19 hydrogen bonds between the complementary strands.

What is the multiplicity of the indicated carbon in an off-resonance decoupled c-13 nmr spectrum?

Answers

Tert-butyl alcohol's 13C-NMR spectrum will only display two signals.

(I) Signal at about 31 ppm: This signal is for the more shielded and electron-rich carbon atoms and is upfield. The height of the peak on the y-axis indicates the relative quantity of carbon atoms to other peaks. Since it is three times as tall as the second signal in this instance, it is clear that this peak represents three carbon atoms.

(ii) Signal at about 70 ppm: This signal is directed downfield and pertains to the carbon atom, which is more exposed and has an environment poor in electrons. The height of these peaks is only one carbon higher than the second signal. Furthermore, the exposed environment demonstrates this carbon.

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what electron configuration for ion C^4+

Answers

Answer:1s2

Explanation:

Type the correct answer in each box. which chemical symbols will complete the equation for this single displacement reaction? 2nabr cl2 → 2 2

Answers

Chemical symbols that will complete the equation are 2NaCl + Br2

The balanced Chemical reaction is -

                                    [tex]2NaBr[/tex] + [tex]Cl_{2}[/tex] → [tex]2NaCl[/tex]  + [tex]Br_{2}[/tex]

Chlorine ([tex]Cl_{2}[/tex]) is more reactive than bromine([tex]Br_{2}[/tex]). So, chlorine  displaces  bromine  from its  compound.

What is a Single Displacement Reaction?A  single  displacement reaction is type of reaction in which  element  react with  compound  and take place  of other  element  in that compound.There are three primary sorts of single not set in stone by the reactivity series:   Metal Replacement: where metal will dislodge another metal.    Hydrogen Replacement: where hydrogen gas is created through relocation by a metal.    Halogen Replacement: when a halogen takes part in relocation.Mostly the  more  reactive  element  displaces  the less reactive elements from its compound.

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Consider your results for the 0. 1-m znso4 solution. is the solution acidic or basic?

Answers

0. 1-m  zinc sulfate - znso4 solution. is the solution acidic solution

Zinc sulfate is the inorganic compound with the formula ZnSO4 and historically known as "white vitriol". Zinc Sulfate is a prescription drug used to treat zinc deficiency. The body's healthy tissues grow and develop more quickly thanks to zinc sulfate.

Zinc sulfate inhalation can harm the respiratory system, bring on nausea, vomiting, stomach pain, disorientation, depression, and even death. Skin injury from exposure through skin contact can result in blisters, ulcers, and scars. In cases of mild to moderate acne, topical 5% zinc sulfate proved beneficial. In cases of moderate to severe acne, oral zinc gluconate and sulfate were helpful.

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The human eye has an osmotic pressure of 8. 00 atm at 37. 0 °c. what concentration (in moles/l) of a saline (nacl) solution will provide an isotonic eyedrop solution?

Answers

0.3147 concentration (in moles/l) of a saline (NaCl) solution will provide an isotonic eyedrop solution.

Isotonic eye drops

Because it might result in eye discomfort or tissue damage if it is not maintained, isotonicity is regarded as a crucial component of ophthalmic medicines. A few drops of blood are mixed with the test preparation before being examined and judged under a microscope at a magnification of 40. Isotonic solutions are those that have the same amount of water and other solutes in them as the cytoplasm of a cell. Since there is no net gain or loss of water, placing cells in an isotonic solution will not cause them to either shrink or swell.

We can calculate the osmotic pressure exerted by a solution using the following expression.

π = M . R . T

where,

π is the osmotic pressure

M is the molar concentration of the solution

R is the ideal gas constant

T is the absolute temperature

The absolute temperature is 37 + 273 = 310 K

π = M . R . T

8 = (X mol/L) . (0.082atm.L/mol.K) . 310 K = 0.3147 mol/L

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At constant temperature and pressure the gibbs free energy value is a measure of the __________ of a process.

Answers

At constant temperature and pressure the gibbs free energy value is a measure of the spontaneity of a process.

At constant temperature and pressure the gibbs free energy value is zero and when gibbs free energy value is zero then the process is spontaneous . The meaning of spontaneous  is that the process is takes place smothly with any effect and itself .

The Gibbs free energy also known as Gibbs function , Gibbs energy or free enthapy . It is a quantity that is used to measure maximum amount of work done in a thermodynamic system when temperature and pressure is keep constant.

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How many moles are in 18.8 grams of NaOH

Answers

There arw 4 moles mhmmnm

A chemist reacted 0. 2 moles sodium benzoate with 0. 25 moles of hydrochloric acid. if she generated 22 g benzoic acid, what was her percent yield? (mw of benzoic acid = 122. 12 g mol-1)

Answers

A chemist reacted 0. 2 moles sodium benzoate with 0. 25 moles of hydrochloric acid. if she generated 22 g benzoic acid, the percent yield is 90%.

Reactant + HCl ------ Product

0.2 mol 0.25 22g

mol

Number of moles of reactant = 0.2mol

Molar mass of product = 122.12g

Number of moles of product = given mass/ molar mass

= 22g/ 122.12 g

= 0.180mol

Percent yield = (number of moles of product/ number of moles of reactant) × 100

= (0.180/0.2) × 100

= 90%

Thus we concluded that the percent yield of the given solution is 90%.

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What set of reaction conditions would favor an sn2 reaction on 2-bromo-3-methylbutane?

Answers

The set of reaction conditions would favor a sn2 reaction on 2-bromo-3-methylbutane is a strong nucleophile in an aprotic solvent. The correct option is D.

What is Sn2 reactions?

It is a type of nucleophilic substitution reaction. This mechanism is common in organic chemistry. In these reactions, one bond is break and one bond is formed simultaneously.

The sn2 is a nucleophile reaction, and it is a strong nucleophile. This type of reaction, will occur in the compounds in which there is one alkyl halide group and a good leaving group.

In 2-bromo-3-methylbutane, there is a bromine and methyl group both, so the favor would be a strong nucleophile in an aprotic solvent.

Thus, the correct option is D) strong nucleophile in an aprotic solvent.

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The question is incomplete. Your complete question is given below:

A) weak nucleophile in a protic solvent

B) weak nucleophile in an aprotic solvent

C) strong nucleophile in a protic solvent

D) strong nucleophile in an aprotic solvent

E) none of the above

Write the balanced equation for the reaction of 1 mol of naoh with 1 mol of h2po4

Answers

Answer:

3 NaOH +  H₃PO₄ ----->  Na₃PO₄ + 3 H₂O

Explanation:

This appears to be a double-displacement reaction. In these reactions, the cation of one compound is swapped with the cation of another. Therefore, Na⁺ (from NaOH) is swapped with H⁺ (from H₃PO₄). When constructing the new compounds, you may need to alter the amount of each ion within a particular compound to to make it neutral.

New Product #1: NaPO₄

----------> Na⁺ and PO₄³⁻

----------> +1 + 1 + 1 + (-3) = 0

New Product #2: H₂O (or HOH)

----------> H⁺ and OH⁻

----------> +1 + (-1) = 0

Now that you know the products, you need to balance the chemical equation. An equation is balanced when there is an equal amount of each element on both sides. These amounts can be modified by adding coefficients.

The unbalanced equation:

NaOH + H₃PO₄ -----> Na₃PO₄ + H₂O

Reactants: 1 sodium, 5 oxygen, 4 hydrogen, 1 phosphorus

Products: 3 sodium, 5 oxygen, 2 hydrogen, 1 phosphorus

The balanced equation:

3 NaOH +  H₃PO₄ ----->  Na₃PO₄ + 3 H₂O

Reactants: 3 sodium, 7 oxygen, 6 hydrogen, 1 phosphorus

Products: 3 sodium, 7 oxygen, 6 hydrogen, 1 phosphorus

**I was having trouble balancing the equation with the reactant H₂PO₄⁻. From my experience, I believe this compound may have been mistyped. As such, I used H₃PO₄. Please let me know if the reactant was written properly**

What type of microscope would you use to visualize a sample labeled with an antibody conjugated to a fluorescent tag? confocal, compound, dissection, electron?

Answers

The confocal microscope would you use to visualize a sample labeled with an antibody conjugated to a fluorescent tag.

Confocal microscopy, also known as laser light microscopy microscopy as well as confocal laser scanning microscopy, would be an optical imaging technique that employs a spatial aperture to block out-of-focus light during the image-formation process to increase the optical resolution as well as the contrast of a micrograph.

Confocal microscopy's fundamental tenet is that the lighting and detection lenses are concentrated at the same light scattering point, which would be traversed over the sample to create the entire image on the detector.

Therefore, The confocal microscope would you use to visualize a sample labeled with an antibody conjugated to a fluorescent tag.

Hence, option (a) will be correct answer.

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A natural gas power plant is 60% efficient. if one cubic meter of natural gas provides 1000 btus of electricity. how many btus of waste heat were produced?

Answers

400 BTU of wasted heat energy is present in the form of electricity.

Energy sources and usagePotential energy sources include fossil fuels like coal, oil, and natural gas. Other energy sources include hydro, solar, and wind. Additionally, nuclear energy may also come from radioactive materials.But energy will constantly lose its strength. Industries would never be able to derive a full amount of energy from their sources.We can only obtain 60% of the energy in ideal situations, such as the Carnot engine. This is if the case is ideal. Actually, we receive considerably less than this for roughly 40%.

So, when efficiency is 60%, energy is used 60% of the time and lost 40% of the time. Thus, according to question, the energy that is wasted is:

1000 BTUx (40/100) = 400 BTU

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1. In a 16 gram sample, how many grams of the parent isotope will be left after 3 half-lives?
A. 2
B. 3
C. 8
D. 16

2. Complete the balanced nuclear reaction below.
/64 → /62 + ?
A. 1n 0
B. 0e −1
C. 4He 2
D. 147Eu


3. How does the trend of proton-to-neutron ratio change as elements become heavier?
A. Elements continue to have an equal number of protons and neutrons.
B. Heavier elements have a great number of protons per neutron.
C. Heavier elements have a greater amount of neutrons per proton.
D. There is no trend between the ratio and the mass of the element.

4. A compound of multiple atom types has less mass than those of the individual atoms they are made of. What accounts for the missing mass?
A. Gamma decay
B. Chain reactions
C. Energy stored in electron bonds
D. Energy stored in the bonds in the nucleus

5. Carbon-14 decays to carbon-12 with a half-life of 5,730 years. How old is a carbon sample containing 3 grams of carbon-14 and 9 grams of carbon-12?
A. 5,730 years
B. 11,460years
C. 17,190years
D. 22,920 years

6. A major argument against nuclear power plants is that they:
A. Produce radioactive waste materials.
B. Release large amounts of carbon dioxide into the atmosphere.
C. Generate less electricity than other types of power plants.
D. Can’t be used at night.

7. A common source of radiation that humans are exposed to come from:
A. Eatingfood
B. An x-ray examination
C. Outer space
D. All of the above

8. Complete the following balanced nuclear reaction.
/92+/0→/36+ 1/0+?

A. 4He 2
B. 0e −1
C. 143Ba 56
D. 144Xe 54

Answers

Based on the half-life of the radioactive sample and the properties of nuclear reactions, the correct options are:

option Aoption Coption Coption Doption Boption A.option C.option C

What is half-life?

Half-life is the time taken for half the amount of atoms in an a radioactive element to decay.

1. After three half-lives, (1/2)³ of the original amount will remain = 1/8

1/8 of 16 = 2 ; option A

2. The balanced nuclear equation is given below:

action below:

/64 → /62 + 4He 2 ; option C

3. The trend of proton-to-neutron ratio as elements become heavier is that heavier elements have a greater amount of neutrons per proton; option C

4. The loss in mass of a compound composed of multiple atom types than those of the individual atoms they are made of is due to energy stored in the bonds in the nucleus known as the binding energy; option D

5. Initially, 12 g of carbon-14 was present

After one half-life, 6 g of carbon-14 remained, and 6 g of carbon-12 was present.

After two half-lives, 3 g of carbon-14 remained, and 9 grams of carbon-12 was present.

Age of the carbon sample = 5730 * 2 = 11460 years; option B

6.  A major argument against nuclear power plants is that they produce radioactive waste materials; option A.

7.  A common source of radiation that humans are exposed to come from outer space in the form of ultraviolet rays; option C.

8. The  balanced nuclear reaction is:

/92+/0 → /36+ 1/0 + 143Ba 56 ; option C

In conclusion, nuclear reaction results in changes in the nucleus of atoms.

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what is the freezing point, in C, of a 2.75 m solution of C8H18 in benzene?

Answers

The freezing point of benzene is 14.08°C.

What is freezing point?

The temperature at which the liquid and solid states of the substance are in equilibrium at atmospheric pressure.

Calculation

The equation which give relation between freezing point depletion and molality is,

[tex]\Delta T_{f} = K_{f} \times m[/tex]

where,

[tex]\Delta T_{f}[/tex] = change in the freezing point of the solvent.

[tex]K_{f}[/tex] of benzene = 5.12°C/m (given)

M is molality of the solution = 2.75 M

Now, after putting the value in above formula we get

[tex]\Delta T_{f} = K_{f} \times m[/tex]

[tex]\Delta T_{f} = 5.12 \times 2.75[/tex]

       = 14.08°C

Thus from the above conclusion we can say that The freezing point of benzene is 14.08°C.

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Answer:

-8.58

Okay, im having trouble with the question too and the answer i types was wrong, so i went to omnicalculator instead and got this answer which was right. :')

some chemical reactions that are reversible (put some picture for better understanding)

Answers

Ammonium chloride is a white solid that breaks down when heated and produces ammonia and hydrogen chloride.

What is the reversible reaction?

A reversible reaction is a reaction in which the conversion of reactants to products and products to reactants occur at the same time. In the above example, the chemical shows a reversible reaction because it moves both forward and backward direction. In reversible reaction, equal amount of reactant is converted into product and product into reactant.

So we can conclude that Ammonium chloride is a chemical that represents a reversible reaction.

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A doubly charged ion with velocity 6. 9 × 106 m/s moves in a path of radius 30 cm in a magnetic field of 0. 80 t in a mass spectrometer. what is the mass of this ion?

Answers

The mass of this ion is 1.16*10^-26kg.

To find the answer, we have to know about the force acting on a particle circulating in a uniform magnetic field.

How to find the mass of this ion?Let us consider that, a particle of mass m with charge q moving with velocity v in a circular orbit of radius r, then the centripetal force of it's path will be equal to the Lorentz magnetic force.

                                  [tex]F_c=F_B\\\frac{mv^2}{r} =qvB\\[/tex]

Thus, the mass of the doubly charged ion will be,

                   [tex]m=\frac{qBr}{v} =\frac{2*1.67*10^{-19}*0.8*30*10^{-2}}{6.9*10^6} \\m=1.16*10^{-26}kg[/tex]

Thus, we can conclude that, the mass of this ion is 1.16*10^-26kg.

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help me with this question please like right now

Answers

Using the gas laws, the volume of nitrogen produced is 6.6 L.

What is the product of a reaction?

We know that the product of a reaction is obtained from the balanced reaction equation. The reactants combine together to yield the products hence we have; N2 + 3H2 ----> 2NH3

We know that 1 mole of hydrogen occupies 22.4 L

x moles of hydrogen occupies 25500 L

x = 1 mole * 25500 L/ 22.4 L

x = 1138.4 moles

If 3 mole of hydrogen reacts with 1 mole of nitrogen

1138.4 moles  reacts with 1138.4 moles * 1 mole/ 3 moles = 379.5 moles

Mass of nitrogen = 379.5 moles * 28 g/mol = 10626 g

Now 3 moles of hydrogen produces 44.8 L of NH3

1138.4 moles  produces 1138.4 moles * 44.8 L/ 3 moles = 17000 L

Now;

P1V1/T1 = P2V2/T2

P1V1T2 = P2V2T1

V2 = P1V1T2/P2T1

V2 = 1 * 17000 * 848/5.5 * 273

V2 =9601 L

2) 2NH4NNO3(s) ---> 4H2O(g) + 2N2(g) + O2(g)

Number of moles = 12g/ 80 g/mol = 0.15 moles

Now;

2 moles of NH4NNO3 produced 2 moles of nitrogen hence 0.15 moles of N2 was produced.

1 mole of N2 occupies 22.4 L

0.15 moles of N2 occupies 0.15 moles  *  22.4 L/1 mole = 3.36 L

P1 = 760 torr

V1 = 3.36 L

T1 = 273 K

P2 = 745 torr

T2 = 527 degrees or 800 K

V2 = ?

V2 =  P1V1T2/P2T1

V2 =  760 *  3.36 * 527/745 * 273

V2 = 6.6 L

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A student sets up the following equation to solve a problem in solution stoichiometry.
(The ? stands for a number the student is going to calculate.)
Enter the units of the student's answer.

Answers

Answer:

[tex]\frac{g}{mL}[/tex]

Explanation:

You can determine the units in the final answer by identifying which of the units cancel out. Units are eliminated (cancelled out) when they are located both in the numerator and denominator of proportions being multiplied.

In this case, these units are cancelled out.....

-----> milligrams (mg) = (1st and 2nd proportions)

-----> decaliters (dL) = (1st and 3rd proportions)

-----> liters (L) = (3rd and 4th proportions)

As these units are not cancelled out, you are left with grams (g) in the numerator and milliliters (mL) in the denominator.

The final units should be represented by:

[tex]? \frac{g}{mL}[/tex]

The decomposition of an insecticide in water at 12 °C follows first-order kinetics with a rate constant of 1.45 yr¹. A drum of this insecticide leaks into a lake, resulting in a concentration of 419 nM. What will be the insecticide concentration in the lake in 3.9 years? Enter your answer in nanomoles (nM), to two significant figures.

Answers

The concentration in the next 3.9 years is obtained as 1.5 nM.

What is first order kinetics?

We know from first order kinetics that the relationship between the concentration and the time is exponential and leads to a straight line graph of the equation;

ln[A] = ln[A]o - kt

[A] = ?

[A]o = 419 nM

k =  1.45 yr¹

t  = 3.9 years

ln[A] = ln(419) - (1.45 * 3.9)

[A]  = e^ ln(419) - (1.45 * 3.9)

[A] = e^6.04 - 5.655

[A]  = 1.5 nM

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Calculate the concentration of clo2− at equilibrium if the initial concentration of hclo2 is 2. 25×10^−2 m.

Answers

The concentration of ClO₂⁻ at equilibrium if the initial concentration of  HClO₂ is 0.0654.

What is concentration?

The concentration of any substance is the quantity of that substance in per square of the space or container.

The reaction is

HClO₂ + H₂O <=> H₃O⁺ + ClO₂⁻

The pH is 0.454 M

Ka = [H₃O⁺][ClO₂⁻ ] / [HClO₂]

2. 25 × 10⁻² m = [x][x] / 0.454-x]

2 + 0.011 - 0.004994 = 0

solve the quadratic equation

x = 0.0654 = [H3O+] = [ClO2-]

pH = -log (H3O+)

pH = -log(0.0654)

pH = 1.2

equilibrium concentrations of

[HClO2] = 0.454 -x = 0.454 -0.0654 = 0.3886 M

[ClO2- ] = x = 0.0654

Thus, the equilibrium concentrations  is 0.0654.

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Provide only the major alkene product that results when n,n-dimethylhexan-2-amine undergoes cope elimination?

Answers

The major alkene  product that results when n,n-dimethylhexan-2-amine undergoes cope elimination is hexene or hex-1-ene.

The reaction in which an amine is oxidize to an intermediate called an N-oxide which , when heated , acts as base in an intramolecular elimination reaction. The oxidation of tertiary amine into N-oxide is called cope reaction.

This elimination gives the less substituted alkene along with more substituted alkene which is Zaitsev product.

Example: Cope elimination of  n,n-dimethylhexan-2-amine form hexene.

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The sensory neurons within the olfactory organ are stimulated by ________ in the air. proteins pressure dust water chemicals

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The sensory neurons within the olfactory organ are stimulated by Chemicals in the air.

Sensory neurons are the neurons that take up the signal from the receptors to the Central Nervous system (CNS)

Olfactory organ is the organ which is capable to sense smell i.e. Olfaction.

The Chemicals present in the air stimulates the sensory neurons present withing the olfactory organ consisting of olfactory epithelium. The cilia present in the epithelium recognizes the chemical present.

The neurons form connections of neuron to the olfactory bulb.

It is a mass of tissue that is round in shape that comprises of several kinds of cells of neurons that are capable to sense smell. It is necessary to sense smell properly.

Odorants are the compound that consist of an odor which get detected by the sensory neurons to carry out olfaction. They activate olfactory receptors and send signals to olfactory bulb.

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halogens are active nonmetals why​

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Answer:

Halogens are among the most active nonmetals due to their electron configuration and number of valence electrons.

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