The positive sign of the energy difference in a chemical reaction would indicate that A) the chemicals are losing energy to the surroundings.

B) the chemicals are gaining energy from the surroundings.

B) the chemicals are gaining energy from the surroundings.

Explanation:

The positive sign of the energy difference in a chemical reaction would indicate that the chemicals are gaining energy from the surroundings. This is what happens in an endothermic reaction.

In an endothermic reaction, heat is absorbed from the surroundings hence the surrounding becomes colder at the end of the changes.

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.