Answer:
Explanation:
Newton's law of gravitational force states that force of gravity is inversely proportional to the distance in between two bodies.
So As an object moves away from the center of the earth, the force of gravity DECREASES.
Iron(III)oxide reacts with carbon monoxide to produce iron and carbon dioxide
- How many moles of iron (Fe) are produced from 1.8 moles of iron(III)oxide (Fe2O3)?
- Using your answer from the question above, how many molecules of iron is present in
that number of moles ?
Answer:
- 3.6 moles Fe
- 2.2 x 10²⁴ molecules Fe
Explanation:
First, you need to create the balanced chemical equation.
The unbalanced equation:
Fe₂O₃ + CO -----> Fe + CO₂
Reactants: 2 iron, 4 oxygen, 1 carbon
Products: 1 iron, 2 oxygen, 1 carbon
The balanced equation:
Fe₂O₃ + 3 CO -----> 2 Fe + 3 CO₂
Reactants: 2 iron, 6 oxygen, 3 carbon
Products: 2 iron, 6 oxygen, 3 carbon
Now that we have the balanced equation, we can use the mole-to-mole ratio (from the equation coefficients) to convert from moles Fe₂O₃ to moles Fe.
1.8 moles Fe₂O₃ 2 moles Fe
-------------------------- x ---------------------- = 3.6 moles Fe
1 mole Fe₂O₃
We can convert between moles and molecules using Avogadro's Number.
Avogadro's Number:
6.022 x 10²³ molecules = 1 mole
3.6 moles Fe 6.022 x 10²³ molecules
--------------------- x ------------------------------------- = 2.2 x 10²⁴ molecules Fe
1 mole
Why does height affect bounce efficiency?