Fall Final Study Guide #1

Front

What is the atomic mass of a sulfur atom with 16 protons, 16 electrons, and 16 neutrons?

Back

32

Front

How many significant figures are in the number 10.020 moles?

Back

5

Front

Solve and round to the correct number of significant figures: 730 / 1.89

Back

390

Front

What is the SI unit for temperature?

Back

kelvin (K)

Front

What is ionization energy?

Back

The energy required to remove an electron from an atom.

Front

What is the definition of atomic number?

Back

The number of protons in the nucleus of an atom.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object; weight is the force exerted by gravity on that mass.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume

Front

What is the principle of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a mole in chemistry?

Back

A mole is a unit that measures the amount of substance, equivalent to 6.022 x 10^23 particles.