For the following reaction, 10.7 grams of magnesium nitride are allowed to react with 15.1 grams of water .

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)? a. 5.0 × 103 b. 5.0 × 10-3 c. 5.0 × 1017 d. 5.0 × 10-17

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form