Indicate the type of solid (molecular, metallic, ionic, or covalent-network) for each compound:. a. InAs,
b. MgO,
c. HgS,
d. In,
e. HBr.

How will the emission of an alpha particle affect the atomic number of an atom

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?

If 16.00g of hydrogen gas reacts with 126.73g of oxygen, how many grams of water are yielded? (both reactants are completely consumed in the reaction.)