A metal ball and beaker of water are at room temperature. The ball is heated and immediately placed in the water. Which statement describes the energy transfers as the ball and the beaker of water approach thermal equilibrium? A. The energy gained by the water will equal the energy lost by the surroundings.
B. The energy lost by the water and the cube will equal the energy lost by the surroundings.
C. The energy lost by the cube will equal the energy gained by the water and the surroundings.

The energy gained by the water will equal the energy lost by the surroundings.

Explanation:

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.