A sample of 36 g of water reacts with calcium to form 2 g of hydrogen and 74 g of calcium hydroxide. water + calcium --> hydrogen + calcium hydroxide

How many grams of calcium reacted?

In chemistry, the type of an atom (what element it is) is determined by: a) the number of protons it contains in its nucleus.b) the number of neutrons it contains in its nucleus.c) the number of protons it has in a cloud around the nucleus.d) the number of neutrons it has in a cloud around the nucleus.e) the number of electrons it exchanges with its neighbors.