What atom has 48 neutrons, and 32 protons

Which term refers to a property that depends only on the amount of a substance? ©@

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate