The Atom
Chemical Reactions
Acids and Bases
Measurement
Elements
100

This subatomic particle carries no charge and is found in the nucleus of the atom.

What is a neutron?

100

This reaction occurs when a single compound breaks down into its constituent elements.

What is a decomposition reaction?

100
A measure of the concentration of hydrogen (hydronium) ions in solution taken as a -log.

What is pH?

100

Avogadro's number

What is 6.022 x 1023?

100

A group 2 (IIA) metal that is biologically important for the building of bones and shells as well as muscle function.

What is calcium?

200

This subatomic particle carries a negative charge and can behave as both a wave and a particle.

What is an electron?

200

This is a reaction where two compounds react by swapping cations and results in a precipitate or the evolution of a gas.

What is a double replacement reaction?

200

These are the products of a neutralization reaction between a strong acid and a strong base.

What are salt and water?

200

The SI unit for amount of substance

What is a mole?

200

The ionized version of fluorine.

What is fluoride?

300

Two or more atoms joined together in a chemical bond.

What is a molecule or compound?

300

This is the part of a redox reaction that results in the loss of electrons for a particular element involved in the reaction. The valence number goes up.

What is oxidation?

300

These are the products of the dissociation of water.

What are hydroxide and hydronium (or hydrogen ion)?

300

A prefix that means 1/1000th of a unit.

What is milli?

300

They have the same number of protons but vary in the number of neutrons.

What are isotopes?

400
1s22s22p63s2

What is the electron configuration of sodium?

400

This is the part of a redox reaction that results in a gain of electrons for a particular element involved in the reaction. The valence number goes down.

What is reduction?

400

This definition of acids and bases expanded the definition to include proton donors as acids and proton acceptors as bases.

What is the Bronsted-Lowry theory of acids and bases?

400

The number 0.08569147 to three significant figures in scientific notation.

What is 8.57 x 10-2?

400

A diatomic non-metal that exists as a gas at STP and is toxic to living organisms but as an anion, can be safely ingested in the form of table salt.

What is chlorine?

500
s, p, d, f

What are the four suborbitals that electrons can fill?

500

This reaction occurs at the cathode in an voltaic cell.

What is reduction?

500

This is a solution that resists changes in pH.

What is a buffer?

500
The formula for density.

What is mass divided by volume?

500
A semimetal that is used in the manufacture of computer chips and LCD displays.

What is silicon?