How many moles of CH2 must react in order to produce 50 moles

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

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

Which of the following units is not an official si unit? mole liter kilogram ampere