3. Which equation correctly relates the heat of reaction to the standard heats of formation?
AH + AH(products) AH°(reactants)
AH® (products) - AH (reactants)
AHO - AHP (reactants) = AHO (products)
AHO = AH' (products) + AH(reactants)

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

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

Akno3 solution containing 51 g of kno3 per 100.0 g of water is cooled from 40 ∘c to 0 ∘c. what will happen during cooling?