Write a balanced equation for the following: 1. P4 + O2 → P2O5

2. C3H8 + O2 → CO2 + H2O

3. Ca2Si + Cl2 → CaCl2 + SiCl4

Write a hypothesis that answers the lesson question, “while observing a chemical reaction, how can you tell which reactant is limiting? ” hypothesis: if a substance is the limiting reactant, then . . because . .

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

How many grams of mgbr2 are needed to produce 75g or metal?