A student has two objects. Object 1 has a mass of 10 g and a volume of 5 cubic centimeters. Object 2 has a mass of 10 g and a volume of 20 cubic centimeters. If both objects are placed in water, which will float and why?

In which reaction is precipitation occurring?

When a device is used in a circuit in which the voltage is 81 v the current flowing through the device is 3 a what is the resistance of the device

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?