chemistry-1 Final   Adding electrons always has an energetic cost Removing electrons sometimes costs energy and sometimes releases energy A K? ion has eight valence electrons and yet is still less stable than a neutral K atom A molecular compound that dissolves in water forms a non-electrolyte A 1

1. False

Adding electrons always has an energetic cost

2. False

Removing electrons sometimes costs energy and sometimes releases energy

3. True

A K? ion has eight valence electrons and yet is still less stable than a neutral K atom

4. True

A molecular compound that dissolves in water forms a non-electrolyte

5. False

A 1.0M solution of calcium nitrate will be 1.0M in nitrate ions. The formula for a nitrate ion is NO??

6. True

The number of moles of solute does not change when a solution is diluted with solvent

7. True

The molarity of a solution changes when a solution is diluted with solvent

8. False

The first ionization energy of sodium is higher than that of neon

9. False

A neutral sodium atom is higher in energy than a singly-charged sodium ion, Na?

10. False

A neutral sodium atom is smaller than a neutral neon atom