Fill in the blanks: An alpha particle is often referred to as a nucleus and is made up of and ___ . It has a symbol in a chemical equation.

What is the correct name for the compound cocl3? a) cobalt(i) chloride b) cobalt(i) chlorate c) cobalt(ii) chlorate d) cobalt(iii) chloride

In which of the following phases of matter do molecules have the highest amount of energy? a. liquid b. gel c. solid d. gas

How many grams of oxygen gas will react completely with a block of calcium metal that is 3.0 cm by 3.5 cm by 4.2 cm, if the density of calcium is 1.55 g/ml? show all steps of your calculation as well as the final answer.