Chemistry of Life

Question 0

Four States of Matter

Answer 0

Solid - Liquid - Gas - Plasma

Question 1

Matter

Answer 1

Anything that occupies space and has mass.

Question 2

Element

Answer 2

A substance that cannot be broken down into other substances.

Question 3

Compounds

Answer 3

Two or more elements in a fixed ratio.

Question 4

Atomic Number

Answer 4

Tells one the number of protons in the nucleus of an atom.

Question 5

Atom

Answer 5

The smallest unit of matter that retains the properties of an element. Consists of protons, neutrons, and electrons.

Question 6

Ionic Bonding

Answer 6

An attraction between two ions with opposite electrical charges. An electron transfer happens, and a compound is formed.

Question 7

Ion

Answer 7

An atom or molecule that has gained or lost one or more electrons, thus acquiring an electrical charge.

Question 8

Covalent Bonding

Answer 8

An attraction between atoms that share one or more pairs of outer-shell electrons. Electron sharing occurs, and this creates molecules.

Question 9

Hydrogen Bonds

Answer 9

A type of weak chemical bond formed when the partially positive hydrogen atom participating in a polar covalent bond in one molecule is attracted to the partially negative atom participating in a polar covalent bond in another molecule.

Question 10

Chemical Reaction

Answer 10

A process leading to chemical changes in matter involving the making and/or breaking of chemical bonds.

Question 11

Reactants

Answer 11

What goes into a chemical reaction.

Question 12

Products

Answer 12

What comes out, the results, of a chemical reaction.