How many moles are in 987 grams of : ra(oh)2

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

Draw the lewis dot structure for each of the following polyatomic ions

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays