When you ground a mineral down to give it sides what are those called

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

How have the greenhouse gasses increased from the year 2000 to 2018

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.