Copy of Chapter 2 Review - Key

Question 1

1

Answer 1

Chemical symbol – rules for chemical symbols; 1st letter is Capitalized and 2nd letter if

Question 2

2

Answer 2

Element – a pure substance that cannot be broken down into simpler substances by

Question 3

3

Answer 3

Atom – the smallest particle of an element that retains all the properties of that element;

Question 4

4

Answer 4

Compound – a chemical combination of two or more different elements; can be broken

Question 5

5

Answer 5

Subscript – the small number that is found after the element and at the bottom. It

Question 6

6

Answer 6

Mixture – a physical blend of two or more elements and/or compounds in any

Question 7

7

Answer 7

Heterogeneous – a mixture where the individual substance that make up the mixture are

Question 8

8

Answer 8

Homogeneous – a mixture with uniform composition

Question 9

9

Answer 9

Phase – state of matter

Question 10

●

Answer 10

Solids are black

Question 11

●

Answer 11

Liquids are blue

Question 12

●

Answer 12

Gases are red

Question 13

a)

Answer 13

The third element in period 5 – Y (Yttrium)

Question 14

b)

Answer 14

The third element in family 9 – Ir (Iridium)

Question 15

c)

Answer 15

The second element in the alkali metal family – Na (Sodium)

Question 16

d)

Answer 16

The fourth element in the noble gases – Kr (Krypton)

Question 17

e)

Answer 17

The lightest halogen – F (Fluorine) – look at the atomic masses

Question 18

f)

Answer 18

The second heaviest metalloid – Po (Polonium) – you have to know what are the 8

Question 19

a)

Answer 19

NH HCO

Question 20

b)

Answer 20

Zn(NO )

Question 21

c)

Answer 21

MnCO

Question 22

d)

Answer 22

SrCN

Question 23

e)

Answer 23

NaOH

Question 24

f)

Answer 24

AlP