Which of the following is a balanced chemical equation?
2 mg + hc1 → mgcl2 + h2
so2 + o2 + 2 h2o → 4 h2so4
2 fe2o3 + 3 c → 4 fe + 3 co2
h2o2 → h2o + o2

2. you__turn left on a red light if you are in the left-most lane of a one-way street, you're turning into the left-most lane of a one-way street, and no nearby sign prohibits the turn.

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.

How many liters of oxygen gas, at standard temperature and pressure, will react with 35.8 grams of iron metal? 4 fe (s) + 3 o₂ (g) → 2 fe₂o₃ (s)