9. Gasoline burns easily if ignited a) Chemical property
b) Chemical change
c) Physical property
O d) Physical change

A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?

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?

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?