Someone please explain how to do this, i will give branliest and extra points!!! Use the following equation: 2Mg + O2 → 2MgO

If 20 grams of MgO were produced, and the reaction used 15 g of Mg, how much O2 was used?

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Hey can you me with this i really need y’all

How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?