Unit 2

Question 1

Element

Answer 1

• Cant be broken down into simpler substances

* 1 type of atom

Question 2

Compound

Answer 2

• 2 or more elements
• Chemically combined into definite proportion
• Can be broken down into elements
• Always homogeneous

Question 3

Mixture

Answer 3

• Physically combined
• Not a fixed composition
• Can be both homogeneous or heterogeneous

Question 4

What separates the periodic table?

Answer 4

Stairstep

*Divides Metals & Nonmetals

Question 5

Name the metalloids

Answer 5

1. Si
2. Ge
3. As
4. Sb
5. Te
6. Po
7. At
   * **DO NOT INCLUDE ALUMINUM

Question 6

Name the 7 diatomic elements

Answer 6

1. H2 (GAS)
2. N2 (GAS)
3. O2 (GAS)
4. F2 (GAS)
5. Cl2 (GAS)
6. Br2 (LIQUID)
7. I2 (SOLID)

Question 7

Homogeneous

Answer 7

Same throughout, uniform

Question 8

Heterogeneous

Answer 8

Separate distinct phases

Question 9

ELEMENT, COMPOUND OR MIXTURE?

Answer 9

.

Question 10

Air

Answer 10

Mixture (Solution)

Question 11

Oxygen

Answer 11

Element

Question 12

Sodium Chloride

Answer 12

Compound

Question 13

Wine

Answer 13

Mixture (Solution)

Question 14

Salt

Answer 14

Compound

Question 15

Copper

Answer 15

Element

Question 16

Beer

Answer 16

Mixture

Question 17

Physical Property

Answer 17

Traits of a substance without altering it

Question 18

Chemical Property

Answer 18

Description of how a substance reacts