Chapter 2 Vocabulry

Question 0

Element

Answer 0

substance made of only one type of atom that cannot be broken down by chemical means.

Question 1

Atom

Answer 1

smallest basic unit of matter

Question 2

Compound

Answer 2

substance made of atoms of different elements that are bounded together in a particular ratio

Question 3

Ion

Answer 3

atom that has gained or lost one or more electrons

Question 4

Ionic Bond

Answer 4

Chemical bond formed through the electrical force between oppositely charged ions.

Question 5

Covalent Bond

Answer 5

A chemical bond formed when two atoms share one or more pairs of electrons

Question 6

Molecule

Answer 6

Two or more atoms held together by covalent bonds, not neccesarily a compound

Question 7

Hydrogen Bond

Answer 7

Attraction between a slightly positive hydrogen atom and a slightly negative atom.

Question 8

Cohesion

Answer 8

attraction between molecules of the same substance

Question 9

Adhesion

Answer 9

Attraction between molecules of different substances

Question 10

Solution

Answer 10

mixture that is sonsistent throughout; also called homogeneous mixture

Question 11

Solvent

Answer 11

substance in which solutes dissolve and that is present in greatest concentration in a solution

Question 12

Solute

Answer 12

substances that dissolves in a solvent and is present at a lower concentration than the solvent

Question 13

Acid

Answer 13

compound that donates a proton when disolved

Question 14

Base

Answer 14

compound that accepts a proton when disolved in a solution

Question 15

pH

Answer 15

measurement of accidity; related to free hydrogen ion concentration in solution