5. The half-life of 232Th is 1.4 x 100 years. If there are 25.0 g of the sample left after
2.8 x 1010 years, how many grams were in the original sample?

Explain what happens at the saturation point when adding salt to water at room temperature.

What does a numerical subscript following an element in a chemical formula mean?

Magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. trial 1: trial 2: data mass of empty crucible with lid trial 1: 26.688 trial 2: 26.681 mass of mg metal, crucible, and lid trial 1: 26.994 trial: 2 26.985 mass of mgo, crucible, and lid trial 1: 27.188 trial 2: 27.180