Answer to Question #190069 in Inorganic Chemistry for julieanna robinson

Question

The reactant that determines how much product can be made?

1. Which statement is true for the reaction represented by this equation CH₄+2O₂ 🡪CO₂+2H₂O?
2. Tells how efficient a reaction is?
3. When magnesium metal is burned, it forms magnesium oxide. How many grams of oxygen gas are required to completely react with 10 moles of Mg? 2Mg+O₂ --> 2MgO?
4. How many moles of oxygen are produced from 3 moles of potassium chlorate in this equation? 2KClO₃ --> 2KCl + 3O₂?
5. How many moles of O₂ are needed to make 2.3X10²⁴ molecules of water? C₃H₈ + 5O₂ --> 3CO₂ + 4H₂O? 
6. How many atoms of Cu would be produced when 9.50 moles of Fe is Used according to the following chemical reaction? 2Fe+3Cu₂SO₄ --> Fe₂(SO₄)₃+6Cu? 

Answer 1

1)1 mol CH₄/16.0g CH₄

2)Measures the efficiency with which reactant mass ends up in the desired product, usually expressed as a percentage.

3)5 moles of O2

4)4.5 moles of Oxygen

5)4.79 moles of Oxygen

6)Atoms of Cu=$3.4×10 ^{24}$