A 3.6g food sample is burned completely in a calorimeter that contains 1000. g of water. The temperature of the water increases 23.65 °C. How many Calories does the food have per gram?

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount

Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.

Which type of intermolecular attractions holds ammonia molecules together with other ammonia molecules?