Chemistry Final Review Practice #2

The formula for the hydronium ion is

Use the diagram to answer the question: How do you change moles to mass?

6.022 x 10²³ is referred to as Avogadro's number.

12.01 grams of carbon has more atoms than 22.99 grams of sodium.

Bronsted-Lowry theory: substance that accepts a proton in a chemical reaction is classified as

One mole of any element always has the same number of atoms as a mole of another element.

The atomic number of an element represents the number of g/mol for that element.

Like a dozen, the value of the mole never changes.

The periodic table provides an element's molar mass.

Use the diagram to answer the question: How do you change moles to molecules?

Arrhenius concluded that an acid ionizes in water to produce

A mole of carbon weighs the same amount as a mole of sodium.

Given a known compound, the % composition in a small sample is the same as in a large sample.

Use the diagram to answer the question: How do you change grams to moles?

The particle that remains after a proton has been released by an acid is

A substance whose solution conducts an electric current is

There are more atoms in a mole of O₂ than in a mole of H₂.

Use the diagram to answer the question: How do you change molecule to moles?

One mole of carbon weighs 12.01 grams.

A mole of anything weighs 6.022 x 10²³ particles.