To save time you can approximate the initial volume of water to ±1 mL and the initial mass of the solid to ±1 g. For example, if
you are asked to add 23 mL of water, add between 22 mL and 24 mL. Which metals in each of the following sets will have equal density? *20.2 g gold placed in 21.6 mL of water and 12.0 g copper placed in 21.6 mL of water. *20.2 g silver placed in 21.6 mL of water and 12.0 g silver placed in 21.6 mL of water. *15.2 g copper placed in 21.6 mL of water and 50.0 g copper placed in 23.4 mL of water. *15.4 g gold placed in 20.0 mL of water and 15.7 g silver placed in 20.0 mL of water. *20.2 g silver placed in 21.6 mL of water and 20.2 g copper placed in 21.6 mL of water. *11.2 g gold placed in 21.6 mL of water and 14.9 g gold placed in 23.4 mL of water.
20.2 g silver placed in 21.6 mL of water and 20.2 g copper placed in 21.6 mL of water
Explanation:
Since the density formula is mass divided volume, you can calculate the density of each of the components of the group and see which of all the groups are equal
Energy may exist in different forms such as potential energy when a body is at rest, kinetic energy when the body is in motion, etc.
Energy can neither be created nor destroyed, however, it can be transformed from one form to another. For example, chemical energy may be transformed into mechanical energy or other forms of energy.
Nuclear energy is energy in the nucleus (core) of an atom. Atoms are tiny particles that make up every object in the universe. There is enormous energy in the bonds that hold atoms together. Nuclear energy can be used to make electricity.
