The seasonal shifts of Earth's planetary wind and moisture belts are due to changes in the latitude that receives the sun's vertical rays.
What is the latitude?The latitude refers to the specific geographic coordinates at some point of the Earth in relation to the Equator line.
Latitude and longitude are geographic coordinates that allow to localize a specific point in the world by using the center of the Earth's planet as point of origin.
The amount of sun rays received by a given latitude largely depends on the season since the Earth's planet has a light inclination that alter this amount of radiation.
In conclusion, the seasonal shifts are due to changes in the latitude that receives the sun's vertical rays.
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A sugar crystal contains approximately 1. 9×1017 sucrose (c12h22o11c12h22o11) molecules. part a what is its mass in mgmg ? express your ans
Sucrose is a disaccharide, which is a sugar molecule formed from two monosaccharides. In this case, the two monosaccharides are fructose and glucose.
Answer and Explanation:
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The condensation of water vapor in the atmosphere and subsequent transfer to the ocean via precipitation is an example of a(n)?
The condensation of water vapor in the atmosphere and subsequent transfer to the ocean via precipitation is an example of a Water Cycle.
What is Water Cycle ?Water cycle is also called hydrologic cycle that shows the continuous movement of water between the air and land.
What are the stages in Water Cycle ?There are four main stages in the water cycle:
Evaporation Condensation Precipitation CollectionThus from the above conclusion we can say that The condensation of water vapor in the atmosphere and subsequent transfer to the ocean via precipitation is an example of a Water Cycle.
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* Write ionic equation, including state symbols for the reaction of
Silver nitrate solution + sodium chloride solution = silver chloride + sodium nitrate solution.
please hurry
Answer:
Ag+ (aq) + Cl- (aq) --> AgCl (s)
Explanation:
Metal nitrates other than the alkali elements on heating decompose into the corresponding metal __ along with the evolution of nitrogen peroxide and oxygen.
The correct answer is nitrates.
NitratesThe chemical formula for nitrate is [tex]NO_{3}[/tex]. Nitrate is a polyatomic ion. Nitrates are the name for salts that contain this ion. Common nitrate ingredients in explosives and fertilizers. Water is a solvent for almost all inorganic nitrates. Bismuth oxynitrate is one type of insoluble nitrate. Tests of endurance exercise performance show that dietary nitrate supplementation is effective. When young, healthy people consume significant amounts of nitrate, whether in the form of pure sodium nitrate or beet juice, their plasma nitrate concentration is quickly increased by a factor of 2 to 3, and this elevated nitrate concentration can be sustained for at least two weeks. Nitric oxide, or NO, is produced in response to elevated plasma nitrate.
Metal nitrates other than the alkali elements on heating decompose into the corresponding metal __ along with the evolution of nitrogen peroxide and oxygen.
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1) A certain compound has an empirical formula of CH_6O_ 2. Its molar mass is between 285 and 315 g/mol. What is its molecular formula?
CH_6O_2
C_4H_24O_8
C_6H_36O_12
C_5H_30O_10
2) certain compound has an empirical formula of NH_2O. Its molar mass is between 55 and 65 g/mol. What is its molecular formula?
NH_2O
N_2H_2O_2
N_2H_4O_2
N_4H_8O_4
3) A certain compound is found to have the percent composition (by mass) of 88.9 percent C and 11.1 percent H. The molar mass of the compound was found to be 54.0 g/mol. Calculate the empirical formula and the molecular formula.
C_2H_3 and C_4H_6
C_2H_6 and C_3H_9
CH_2 and C_3H_6
CH_3 and C_2H_6
4) The characteristic odor of pineapple is due to ethyl butyrate. It contains 62.07 percent carbon, 10.34 percent hydrogen, and 27.59 percent oxygen. Determine the empirical formula.
C_6H_6O_2
C_6H_12O_2
C_3H_3O
C_3H_6O
5) Zircon is a diamond-like material that has the composition 49.76 percent Zr, 15.32 percent Si, and 34.91 percent O. What is the empirical formula of zircon?
ZrSiO
ZrSiO_2
ZrSiO_3
ZrSiO_4
1. The molecular formula of the compound is C₆H₃₆O₁₂
2. The molecular formula of the compound is N₂H₄O₂
3 The empirical formula and molecular formula of the compound are: C₂H₃ and C₄H₆
4. The empirical formula of the compound is C₃H₆O
5. The empirical formula of the compound is ZrSiO₄
1. How to determine the molecular formula Empirical formula = CH₆O₂Molar mass = (285 + 315) / 2 = 600 / 2 = 300 g/moleMolecular formula =?Molecular formula = empirical × n = molar mass
[CH₆O₂]ₙ = 300
[12 + (6×1) + (16×2)]ₙ = 300
50n = 300
Divide both side by 74
n = 300 / 50
n = 6
Molecular formula = [CH₆O₂]ₙ
Molecular formula = [CH₆O₂]₆
Molecular formula = C₆H₃₆O₁₂
2. How to determine the molecular formula Empirical formula = NH₂OMolar mass = (55 + 65) / 2 = 120 / 2 = 60 g/moleMolecular formula =?Molecular formula = empirical × n = molar mass
[NH₂O]ₙ = 60
[14 + (2×1) + 16]ₙ = 60
32n = 60
Divide both side by 32
n = 60 / 32
n = 2
Molecular formula = [NH₂O]ₙ
Molecular formula = [NH₂O]₂
Molecular formula = N₂H₄O₂
3. How to determine the empirical formula and molecular formulaWe'll begin by obtaining the empirical formula. This is illustrated below:
Carbon (C) = 88.9%Hydrogen (H) = 11.1%Empirical formula =?Divide by their molar mass
C = 88.9 / 12 = 7.4
H = 11.1 / 1 = 11.1
Divide by the smallest
C = 7.4 / 7.4 = 1
H = 11.1 / 7.4 = 3/2
Multiply by 2 to express in whole number
C = 1 × 2 = 2
H = 3/2 × 2 = 3
Thus, the empirical formula of the compound is C₂H₃
Finally, we shall determine the molecular formula of the compound. This is illustrated below:
Molar mass of compound = 54 g/molEmpirical formula = C₂H₃Molecular formula =?Molecular formula = empirical × n = molar mass
[C₂H₃]ₙ = 75.16
[(12×2) + (3×1)]ₙ = 54
27n = 54
Divide both side by 27
n = 54 / 27
n = 2
Molecular formula = [C₂H₃]ₙ
Molecular formula = [C₂H₃]₂
Molecular formula = C₄H₆
4. How to determine the empirical formulaCarbon (C) = 62.07%Hydrogen (H) = 10.34%Oxygen (O) = 27.59%Empirical formula =?Divide by their molar mass
C = 62.07 / 12 = 5.1725
H = 10.34 / 1 = 10.34
O = 27.59 / 16 = 1.724
Divide by the smallest
C = 5.1725 / 1.724 = 3
H = 10.34 / 1.724 = 6
O = 1.724 / 1.724 = 1
Thus, the empirical formula of the compound is C₃H₆O
5. How to determine the empirical formulaZr = 49.76%Si = 15.32%O = 34.91%Empirical formula =?Divide by their molar mass
Zr = 49.76 / 91 = 0.547
Si = 15.32 / 28 = 0.547
O = 34.91 / 16 = 2.182
Divide by the smallest
Zr = 0.547 / 0.547 = 1
Si = 0.547 / 0.547 = 1
O = 2.182 / 0.547 = 4
Thus, the empirical formula of the compound is ZrSiO₄
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You are working in a lab on your magnetic levitation experiment. You are standing directly in front of two magnets. Another scientist near you has a malfunction with their equipment and gamma radiation is emitted directly at you, passing through the magnets first. You are wearing a lab coat and goggles. Are you safe?
A. Yes, gamma radiation is not deflected by magnets but it is easily blocked by the lab coat.
B. Yes, gamma radiation is strongly deflected by magnets so it would have missed you.
C. No, gamma radiation is only slightly deflected by magnets so it would still hit you if you were close to the magnets.
No, gamma radiation is only slightly deflected by magnets so it would still hit you if you were close to the magnets. That is option C.
What is magnetic levitation?Magnetic levitation which is also called magnetic suspension is defined as the phenomenon in which two magnetic objects are repelled from each other in a vertical direction.
Gamma radiation is defined as a type of electromagnetic wave with the highest energy and shortest wave length.
The gamma rays do not possess any charge and therefore are not affected by electric or magnetic fields.
Therefore, when gamma radiation is mistakenly emitted directly at you, passing through the magnets first, it will still hit you because the ray are only slightly deflected by magnets.
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A 200 mL sample of oxygen is
collected over water at 30 oC and
850 mmHg pressure. What is the
pressure of the dry oxygen gas
only? (The vapor pressure of water
at 30 oC is 24. 5 mm Hg)
Answer:
825.5 mm
Explanation:
850 mm is the total pressure of the two gases....subtract the water vapor pressure and the remainder is due to the oxygen
850-24.5 = 825.5 mm
Read the chemical equation. n2 3h2 → 2nh3 using the volume ratio, determine how many liters of nh3 is produced if 1.2 liters of h2 reacts with an excess of n2, if all measurements are taken at the same temperature and pressure?
0.8 liters of NH₃ is produced.
What is Chemical equation?A chemical equation is a symbolic representation of a chemical reaction in the form of symbols and formulae, where the reactant entities are given on the left and the product entities are given on the right, with a plus sign separating the entities in both the reactants and the products and an arrow pointing in the direction of the products to indicate the reaction's direction. The absolute values of the stoichiometric numbers are shown as coefficients next to the symbols and formulas of the entities. Jean Beguin drew the first chemical equation in 1615.
pressure - The SI unit for pressure is the pascal (Pa), which is equal to one newton per square metre (N/m2) of force per unit area of surface. An object's pressure is inversely proportional to the area it is pressing on and inversely proportional to the force it applies.
Given chemical reaction is:
N₂ + 3H₂ → 2NH₃
From the stoichiometry of the reaction, it is clear that:
3 liters of H₂ = produce 2 liters of NH₃
1.2 liters of H₂ = produce 2/3 × 1.2 = 0.8 liters of NH₃
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