A student heats a sample of Copper (II) chloride in a crucible and records the data shown in the table. What is the complete formula and name for the compound before heating? Show your work.

Mass of empty crucible 127.30 g

Mass of crucible + sample before heating: 159.76 g

Mass of crucible + sample after heating: 146.80 g

If 1.8 l of water is added to 2.5l of a 7.0 molarity koh solution, what is the molarity of the new solution

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

Sugar is dissolved in water. which is the solute? sugar neither both water