Ch.2 Review

Question 0

The Law of Definite proportions?

Answer 0

A given compound always contains the same proportion of elements by mass.

Question 1

The Law of Conservation of Mass?

Answer 1

Mass can neither be created or destroyed in a chemical reaction.

Question 2

The Law of Multiple Proportions?

Answer 2

When 2 elements form a series of compounds, the ratios of the masses of the second element that combine with 1 gram of the first element can always be reduced to whole number ratios.

Question 3

Dalton’s Atomic Theory?

Answer 3

1. All elements are composed of atoms.
2. All atoms of a given element are identical
3. Chemical compounds are formed when atoms combine
4. Atoms are not changed in chemical reactions but the way they are bound together changes.

Question 4

Acids with anions ending in -ide?

Answer 4

Hydro+stem+ic acid

Question 5

Naming acids with anions ending in -ate?

Answer 5

Stem+ic + acid

Question 6

Acids with anions ending in ite?

Answer 6

Stem+ous+ Acid

Question 7

Atomic History Order?

Answer 7

Thomson-Plum Pudding Model
Millikan-Charge
Rutherford-Nuclear Model

Question 8

Thomson?

Answer 8

Cathode ray experiment. Discovered electron was negative. Plum Pudding Model.

Question 9

Millikan?

Answer 9

Oil Drop Apparatus. Discovered exact charge of electrons.

Question 10

Rutherford experiment?

Answer 10

Foil experiment. Nuclear Model.

Question 11

Radio Activity?

Answer 11

Henri Becquerel

Question 12

Gamma (y) ray?

Answer 12

High energy “light”

Question 13

beta(B) particles?

Answer 13

High speed electrons

Question 14

Alpha (a) particle?

Answer 14

2+ charge

Question 15

Electron mass?

Answer 15

1/840 of proton

Question 16

metals?

Answer 16

Shiny,malleable, and hard

Question 17

nonmetals?

Answer 17

do not conduct heat or electricity

Question 18

metalloids?

Answer 18

Share characteristics of both metals and non-metals.

Question 19

Name of oxyanions?

Answer 19

if # of oxygen atoms is more -ate.

if # of oxygen atoms is less -ite.