Challenge a weather ballon has a volume of 90.0l when it is released from the sea level. what is the atmospheric pressure on the balloon when it has grown to a size of 175.0l

In the lab, ammonia was mixed with water to form ammonium hydroxide. what is/are the reactant(s)? o water and ammonia o ammonia o ammonium hydroxide need

No copying 15 pts how does a free-body diagram tell you about the net force on an object?

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.