Topic 4 Acids and alkalis

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

• What term describes a substance that attacks metals, stonework and skin?

Back (Answer)

corrosive

Front (Question)

• Name an acidic solution found in the kitchen.

Back (Answer)

vinegar or fruit juice, etc.

Front (Question)

• Name an alkaline solution used in the kitchen.

Back (Answer)

bleach or oven cleaner or soap, etc.

Front (Question)

• What type of substance turns litmus paper red?

Back (Answer)

acid

Front (Question)

• How does an indicator show the acidity or alkalinity of solutions?

Back (Answer)

by changing colour

Front (Question)

• What pH values represent alkaline solutions?

Back (Answer)

above 7 or 8 to 14

Front (Question)

• What kind of reaction occurs between an acid and an alkali?

Back (Answer)

neutralisation

Front (Question)

• What do you call a solution that is neither acidic nor alkaline.

Back (Answer)

neutral

Front (Question)

• Which ion is in excess in all acidic solutions?

Back (Answer)

hydrogen ions or H+ ions

#10

Front (Question)

• Which ion is in excess in all alkaline solutions?

Back (Answer)

hydroxide ions or OH- ions

#11

Front (Question)

• What scale is used for measuring acidic and alkaline properties?

Back (Answer)

the pH scale

#12

Front (Question)

• Name three examples of acid/alkali indicators apart from universal indicator.

Back (Answer)

litmus, methyl orange and phenolphthalein

#13

Front (Question)

• What would you use to measure pH to one decimal place?

Back (Answer)

a pH meter

#14

Front (Question)

• What pH values are acidic?

Back (Answer)

below 7

#15

Front (Question)

• What word describes a solution that contains a large amount of solute in a small volume of solvent?

Back (Answer)

concentrated

#16

Front (Question)

• How can a solution be made more dilute?

Back (Answer)

by adding solvent/water

#17

Front (Question)

• What kind of reaction occurs between an acid and a base?

Back (Answer)

neutralisation

#18

Front (Question)

• What acid would be used to make zinc sulfate from zinc oxide?

Back (Answer)

sulfuric acid

#19

Front (Question)

• How can a sample of a dissolved salt be obtained from a salt solution?

Back (Answer)

evaporation of the water

#20

Front (Question)

• Which salt is formed when copper oxide reacts with sulfuric acid?

Back (Answer)

copper sulfate

#21

Front (Question)

• Name the acid that has the formula HCl.

Back (Answer)

hydrochloric acid

#22

Front (Question)

• What colour is phenolphthalein in alkaline solutions?

Back (Answer)

pink

#23

Front (Question)

• What is the formula for sulfuric acid?

Back (Answer)

H2SO4

#24

Front (Question)

• What is the formula for hydrochloric acid?

Back (Answer)

HCl