Semester 1 Chemistry Review 2021

Front

What should you do if you want to leave your lab station?

Back

Ask the teacher if you may leave.

Front

Which represents the greatest mass of sulfur?

Back

6.02 x 10^23 atoms of sulfur.

Front

What is the correct option for chemical disposal?

Back

Discard the chemicals according to written and/or verbal instructions.

Front

What is the definition of molar mass?

Back

Number of grams per one mole of a substance.

Front

Which element is most similar in behavior to lithium?

Back

Sodium.

Front

What is the definition of a mole in chemistry?

Back

A mole is 6.02 x 10^23 particles of a substance.

Front

What is the significance of the atomic number?

Back

The atomic number represents the number of protons in an atom's nucleus.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is the formula for calculating density?

Back

Density = Mass/Volume.