7. the grid in a triode is kept negatively charged to prevent a. electrons from escaping from the tube containing the triode. b. electrons being repelled back to the cathode. c. the electrons from being attracted to the grid instead of the anode. d. the variations in voltage from getting too large.

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

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate

What is the molecular weight of copper