Chapter 1 intro to chem

Question 1

Matter

Answer 1

Anything that occupies space

Question 2

Elements

Answer 2

All atoms are the same symbols in Periodic table; P, H O, They CANNOT be broken down into simpler substance.

Question 3

Compound

Answer 3

Two or more different kind of atoms are joined by bonds.

Question 4

What are examples of elements?

Answer 4

hydrogen, oxygen, chloride, nitrogen, fluorine

Question 5

Diatomic

Answer 5

Consists of two atoms

Question 6

Molecule

Answer 6

Anything more than one atom bonded together

Question 7

Name the three physical states.

Answer 7

Solid, Liquid, and Gas

Question 8

What are the difference between particle in different states of matter? I.E soild, Gas, and liquid

Answer 8

a) compacted together, ( Definite shape)
B) Slip and slide ( Takes the shape of container)
c) spaced-out ( uniformly fills its container)

Question 9

Physical change

Name an example;

Answer 9

Changes in appearance
No change in chemical identity
Same compound before and after
No broken bonds

Question 10

Chemical change

Name an example;

Answer 10

Change in chemical compound
chemical identity change
Different physical change
Heat and light given off

Question 11

List the different types of matter?

Answer 11

a) pure substance
b) elements
c) compound
d) mixture
e) homogeneous and heterogeneous

Question 12

Pure Substance

Answer 12

Single type of matter (elements or compound)

Question 13

Mixture

Answer 13

Heterogenous and Homogeneous

Question 14

What’s the difference between heterogenous and homogeneous?

Answer 14

One mixes evenly, while the other does not

Question 15

Different ways of separation of mixtures

Answer 15

Filtration
Distillation
chromatography