The heat of solution of sodium nitrate is 5.03 kcal/mol solute in 200g of water. Calculate the quantity of heat that would be absorbed if 50.0 g of sodium nitrate dissolves in 200g of water. What would be the change in the temperature of water? ( NOTE : specific heat of water = 0.001 kcal/g • °C)

Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread

Substance x has a fixed volume, and the attraction between its particles is strong .substance y had widely spread out particles and can be compressed what can most likely be concluded about these substances

Explain why pure hydrogen cyanide does not conduct electricity, but become a conductor when it is dissolved in water? (at room temp, pure hcn exists as a volatile liquid)