Ionic compounds can be made from a metallic ion and a nonmetallic ion. metallic ions are positive (cations). nonmetallic ions are negative (anions). for each equation given below, enter the sum in the space provided.

(+1) + (–1) =

(+2) + (–2) =

2(+1) + (–2) =

(+3) + 3(–1) =

3(+2) + 2(–3) =

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Atoms contain subatomic particles called protons and neutrons. when these protons and neutrons spilt, a lot of energy is released