Acids, Alkalis, Neutralisation

Question 1

Sodium hydroxide

Answer 1

Used to make oven and drain cleaners

Question 2

Calcium hydroxide

Answer 2

Used to treat soil that is too acidic for plants to grow

Question 3

Magnesium hydroxide

Answer 3

Used to make indigestion remedies

Question 4

Ammonia

Answer 4

Used to make fluids which clean silver and brass

Question 5

Is the pH of Alkali above or below 7?

Answer 5

ABOVE 7

Question 6

What are alkalis?

Answer 6

Solutions
Chemical opposite of acid
Can be concentrated or dilute
React different to acid but are equally as dangerous

Question 7

What are alkalis?

Answer 7

Solutions
Chemical opposite of acid
Can be concentrated or dilute
React different to acid but are equally as dangerous

Question 8

Hydrocloric acid

Answer 8

Made in the human stomach to help digest food

Question 9

Sulfuric acid

Answer 9

Used in car batteries

Question 10

Nitric acid

Answer 10

Used to make fertilisers

Question 11

Ethanoic acid

Answer 11

One of the substances in vinegar

Question 12

Citric acid

Answer 12

Occurs naturally in oranges,lemons and other citric fruits

Question 13

Carbonic acid

Answer 13

Used in fizzy drinks

Question 14

What are acids?

Answer 14

Solutions
Only have there acidic properties when they dissolve in water
Solvent is always water
Solute is different for each acid

Question 15

Concentrated

Answer 15

Lots of the acid/acid dissolved in a measured amount of water

Question 16

Dilute

Answer 16

Little of the acid/alkali dissolved in a measured amount of water

Question 17

Indicator FACTS

Answer 17

Indicator goes RED in a ACID
Indicator goes BLUE/PURPLE in a ALKALI
indicator goes GREEN in normally means NEUTRAL
It is a SUBSTANCE

Question 18

What colour would phenolphthalein go with hydrochloric acid?

Answer 18

COLOURLESS

Question 19

What colour would phenolphthalien go with magnesium hydroxide

Answer 19

PINK 🩷

Question 20

What colour would methyl orange go with nitric acid

Answer 20

RED ❤️

Question 21

What colour would methyl orange go with sodium hydroxide

Answer 21

YELLOW 💛

Question 22

What colour would litmus paper go with sulphuric acid?

Answer 22

RED/PINK ❤️🩷

Question 23

What colour would litmus paper go with calcium hydroxide?

Answer 23

BLUE 🩵

Question 24

What colour would bromothymol blue go with ammonia solution?

Answer 24

BLUE 🩵

Question 25

What colour would bromothymol go with carbonic acid?

Answer 25

YELLOW 💛

Question 26

What colour would cabbage indicator go with lithium hydroxide?

Answer 26

GREEN 💚

Question 27

What colour would cabbage indicator go with citric acid?

Answer 27

PINK 🩷

Question 28

What 3 things happen when you mix CITRIC acid and SODIUM HYDROGENCARBONATE

Answer 28

1) It fizzes 2) Cools down 3) Turns into a colourless solution

Question 29

What happens to the acid as it dissolves in water that allows it to under acid style reactions?

Answer 29

It splits apart

Question 30

Any metal oxide that cannot dissolve in water is called a base an example of a metal hydroxide is…

Answer 30

Copper oxide

Question 31

Any metal oxide that can dissolve in water is called an alkaline but is also a base at the same time. An example of a metal oxide is…

Answer 31

Calcium hydroxide

Question 32

NEUTRALISATION

Answer 32

Acid + Base = SALT

Question 33

1) Bee Stings 2) wasp stings 3) nettle stings 4) acidic soil

Answer 33

1) soap 2) vinegar 3) dock leaves 4) calcium hydroxide (lime)

Question 34

Methyl orange

Answer 34

Acid: red/orange Alkali: yellow

Question 35

Bromothymol blue

Answer 35

Acid: yellow Alkali: green

Question 36

Phenolthalein

Answer 36

Acid: colourless Alkali: pink

Question 37

Litmus

Answer 37

Acid: red Alkali: blue

Question 38

pH values of the Universal Indicator

Answer 38

0-2 = red 3-4 = orange 5-6 = yellow 7 = green 8-9 = blue/green 10-11 = blue 12-14 = purple