L1 Acids and bases - chemistry

Question 1

Atoms

Answer 1

Atoms are the smallest particle of a chemical element that can exist which cannot be broken down by any chemical means. Consist of protons, neutrons, and electrons.

Question 2

Three subatomic particles

Answer 2

Proton

Neutron

Electron

Question 3

Proton

Answer 3

Protons are found in the nucleus of an atom, larger and heavier than electrons. Have a positive charge (+) and a relative mass of 1

Question 4

Neutron

Answer 4

Neutrons are found in the nucleus of an atom, large and has a similar mass to (1) however they do not have any electrical charge (0)

Question 5

Electron

Answer 5

Electrons are found orbiting around the nucleus, has a negative electrical charge (-1) and has a relative mass of 1/2000

Answer 6

Acids have a sour taste

Acids turn blue litmus paper red

Question 7

pH scale

Answer 7

Acids have a pH of 1-2

Question 8

Properties of acid

Answer 8

Acids have a sour taste
Acids turn blue litmus paper red
Turns blue litmus paper red
Below 7 on the pH scale

Question 9

Properties of base

Answer 9

Taste bitter
Feel slippery/soapy
Turns red litmus paper blue
Above 7 on the pH scale

Question 10

Whats are the three things that must happen for a successful collision to occur?

Answer 10

Particles must collide with…
- Enough energy
AND
- At the correct orientation

Question 11

What are the four ways to increase the rate of a chemical reaction?

Answer 11

• Temperature
• Catalyst
• Concentration
• Surface (SA)

Question 12

Temperature

Question 13

Concentration

Question 14

Surface area (SA)

Question 15

Catalyst

Question 16

Chemical equation

Question 17

Word equation

Question 18

What is the general equation for acid and base?

Question 19

What is the general equation for metal carbonate and acid?

Question 20

What is the general equation for