Homework #5 week one

1. Two pieces of information that a chemical formula tells people are the number of atoms of the element and each element present.A. Number four; two, one, and five represent elements. B. Numbers three and six represent compounds.
2. A. 3 hydrogen, 1 phosphorous and four oxygen. B. 1 salt, one oxygen, and 1 hydrogen. C. 1 sulfur 2 oxygen
3. C. Hydrogen reacts with two chlorines to form a hydrogen chlorine product. Four hydrogen and four oxygen react to form 4 hydrogen attached to 2 oxygen plus two oxygen.
4. NaHCO3 + HCI  NaCl + H2O + CO2 ; C6H12O6 + O66CO2 + 6H2O.