What are three physical factors that can be done to speed up a chemical reaction

Predict the products butane (c4h10) + oxygen —>

What three things determine the shape and size of a puddle when water is poured out onto a surface

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)