2.3

Question 1

Two or more atoms held together by a chemical bond

Answer 1

Molecule

Question 2

Two or more different kinds of atoms bind, they form molecules of a ….

Answer 2

Compound

Question 3

Are homogeneous mixtures of components that may be gases, liquids, or solids

Answer 3

Solutions

Question 4

Parts per 100

Answer 4

Percent

Question 5

3 types of mixtures.
Solute particles are very tiny, do not settle out or scatter light

Question 6

3 types of mixtures.
Solute particles are larger than in a solution and scatter light, do not settle out

Answer 6

Colloid

Question 7

3 types of mixtures,
Solute particles are very large, settle out, and may scatter light

Answer 7

Suspension

Question 8

The number of molecules in one mole of any substance. 6.02X10^23

Answer 8

Avogadro’s number

Question 9

A way to express the concentration of a solution, moles per Litres of solution

Answer 9

Molarity

Question 10

A … of any element or compound is equal to its atomic weight or its molecular weight (sun of atomic weights) measured in grams

Answer 10

Mole

Question 11

Reversible change of a collie from a fluid (sol) to a more solid (gel) state

Answer 11

Sol-gel transformation

Question 12

Heterogeneous mixtures with large, often visible solutes that tend to settle out

Answer 12

Suspension

Question 13

Sum of atomic weights

Answer 13

Molecular weight