You place a balloon in a closed chamber at standard temperature and pressure (STP). You triple the chamber pressure. What happens to the balloon?

The volume stays the same.
The volume increases to three times its original volume.
The temperature must also change for the volume to change.
The volume decreases to one-third of its original volume.

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

Matches the chemical name of each oxide of phosphorus to its chemical formula

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.