1. When we react 0.600 mol of Mg3N2 with 4.00 mol of H20, which is the limiting reactant? Mg3N2 (s) + 6 H20 (1) --> 3Mg(OH)2 (aq) + 2NH3(g)

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

there is none because earth is stationary and flat.

c) should be the answer.

it has both hydrogen and oxygen