If 25.0 g of copper are mixed with 13.4 g of oxygen to produce copper II oxide, how much water is produced

Schrodinger and heisenberg developed an alternate theory about atomic nature that contradicted some of bohr's model of the atom. how do changes resulting from new technology and evidence affect the reputation of the atomic theory?

What are the 4 phases of matter in order of increasing engery content?

Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5