A 64.35-g of an unknown metal sample at 100(degree Celsius) is placed into a calorimeter that contains 55.0 g of water at 25.2(degree Celsius). The final temperature of the metal and water is 29.7(degree Celsius).
a. How much heat, kJ, transferred from the metal to the water?

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

Consider this equilibrium: n29) + o2(g) + 2no(c).nitrogen gas and oxygen gas react when placed in a closed container. as the reaction proceeds towards equilibrium, what happens to the rate of thereverse reaction?