An atom of chlorine has 17 protons and 18 neautrons. If the atoms gain one electron, what will be the charge on the ion that forms?

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

If two atoms are bonded to a central atom with no lone pairs, how will they be arranged

Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.