The mass in a chemical reaction is found in

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

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

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?