chemistry

Question 1

1

Answer 1

mono

Question 2

2

Answer 2

di

Question 3

3

Answer 3

tri

Question 4

4

Answer 4

tetra

Question 5

5

Answer 5

penta

Question 6

6

Answer 6

hexa

Question 7

7

Answer 7

hepta

Question 8

8

Answer 8

octa

Question 9

9

Answer 9

nona

Question 10

10

Answer 10

deca

Question 11

ammonia

Answer 11

NH3 (g)

Question 12

glucose

Answer 12

C6H12O6 (s)

Question 13

hydrogen peroxide

Answer 13

H2O2 (l)

Question 14

methane

Answer 14

CH4 (g)

Question 15

ethane

Answer 15

C2H6 (g)

Question 16

methanol

Answer 16

CH3OH (l)

Question 17

ozone

Answer 17

O3 (g)

Question 18

water

Answer 18

H2O (l)

Question 19

sucrose

Answer 19

C12H22O11

Question 20

propane

Answer 20

C3H8

Question 21

properties of ionic compounds

Answer 21

• high melting point
• always solid at room temperature (if not in solution)
• retains a crystal shape
• at least slightly soluble in water
• conductive in a solution (forms electrolyte)

Question 22

multivalent ions

Answer 22

have more than one charge (transition metals) remember to put Roman numerals

Question 23

Thompson

Answer 23

• Discovered that negatively charged atoms were embedded in a sphere of positive charges
• Cathode tube
• “Plum pudding” or “Raisin bun” model

Question 24

Rutherford

Answer 24

• emits alpha particles (positively charged)
• particles going straight through
• some particles reflecting/coming back
• the atom is empty spaced
• dense centre
• when an alpha particle comes in contact with the nucleolus it scatters

Question 25

Dalton

Answer 25

1. All matter is made out of invisible particles called atoms
2. All atoms of given element are identical
3. Atoms of different elements have different properties
4. Atoms combined in a set ratio creates a compound

Question 26

Bohr

Answer 26

• Electrons could only live in specific energy levels when the electrons move between levels they would give specific colors of life
• spectrum
• bhors diagram

Question 27

Protons

Answer 27

In the nucleus, positive charge

Question 28

Neutrons

Answer 28

nucleus, no charge

Question 29

Electrons

Answer 29

orbitals, negative charge

Question 30

Evidence a reaction has occurred

Answer 30

Energy change, Odor change, color change, formation gas, formation of solid in solution

Question 31

Endothermic reaction

Answer 31

A reaction that absorbs energy

Question 32

Exothermic

Answer 32

A reaction that releases energy

Question 33

Molecular (colavent) Compound Properties

Answer 33

1. Lower melting points because of the weaker bonds between molecules
2. Can be solid, or gas at room temperature.
3. Don’t form electrolytes, so they don’t conduct any electricity in a solution.
4. Solubility is inconsistent - some are soluble, others are not soluble in water.