Vocab 2 Some

Question 1

Element

Answer 1

A substance that cannot be separated or broken down into simpler substances by chemical means

Question 2

Atom

Answer 2

The smallest unit of an element that maintains the chemical properties of that element

Question 3

Mass #

Answer 3

The sum of the numbers of protons and neutrons in the nucleus of an Atom

Question 4

Isotope

Answer 4

And atom that has the same number of protons as other Adams of the same element do but that has a different number of neutrons

Question 5

Compound

Answer 5

Hey substance made up of Adams of two or more different elements joined by chemical bonds

Question 6

Chemical bond

Answer 6

The attractive force that holds Adams are joins ions together

Question 7

Molecule

Answer 7

Hey group of atoms that are held together by chemical forces, smallest unit of matter that can exist by itself and retain all of the substances chemical properties

Question 8

Activation energy

Answer 8

The minimum amount of energy required to start a chemical reaction

Question 9

Catalyst

Answer 9

A substance that changes the rate of a chemical reaction without being consumed or change significantly

Question 10

Aqueous solution

Answer 10

Hey solution in which water is the solvent

Question 11

Saturated solution

Answer 11

A solution that cannot dissolve any more solutions under the given conditions