General Chemistry Quiz #1

In smelling chemicals, wafting is not the proper technique.

In an exothermic reaction, the surroundings absorb energy from the system.

I. There is a transfer of energy in an open system.

II. There is a transfer of matter in a closed system.

The total volume of the molecules of a gas is definite.

You should pipette by mouth.

A balanced chemical reaction shows one of the applications of the Law of Conservation of Energy.

In an incomplete combustion, there is a limited amount of oxygen, so the product is carbon dioxide and water.

If you fully understand the procedures of an experiment, it is acceptable to work alone in a laboratory.

Drinks are not allowed in the laboratory.

Oxidizers and reductants should be placed together on the storage shelf.