Ch - 11 (Acids and Bases)

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

Card preview (24)

Front (Question)

What happens when acids are added to water?

Back (Answer)

Form positively charged hydrogen ions. (H+)

Front (Question)

What makes a solution acidic?

Back (Answer)

Presence of H+ ions.

Front (Question)

Give a word equation of acids reacting with metals?

Back (Answer)

Acid + Metal –> Salt + Hydrogen

Front (Question)

Which metals in the reactivity series will react with dilute acids?

Back (Answer)

Metals above hydrogen

Front (Question)

What can act as bases?

Back (Answer)

• Metal oxides • Hydroxides (alkalis)

Front (Question)

Give a word equation of acid reacting with base.

Back (Answer)

Acid + base –> Salt + water

Front (Question)

Give an equation of the acid reacting with a metal carbonate.

Back (Answer)

Acid+ metal –> salt + carbon dioxide + water

Front (Question)

What is one common indicator?

Back (Answer)

Litmus extracted from lichens

Front (Question)

What are synthetic indicators?

Back (Answer)

Organic compounds that are sensitive to changes in acidity and appear different colours in acids and alkalis.

#10

Front (Question)

What are 2 synthetic indicators frequently used in acid - alkali titrations?

Back (Answer)

Thymolphthalein and methyl orange

#11

Front (Question)

What are synthetic indicators used for?

Back (Answer)

To show the endpoint in titrations as they have a very sharp change of colour when an acid has been neutralised by an alkali or vice versa.

#12

Front (Question)

Is litmus suitable for tritration? why or why not?

Back (Answer)

colour change is not so sharp, colour in neutral solution makes it difficult

#13

Front (Question)

What pH does a base have?

Back (Answer)

Above 7

#14

Front (Question)

What is a base?

Back (Answer)

water soluble referred to as an alkali

#15

Front (Question)

In basic (alkaline) what colour do the following change into: - red litmus paper - methyl orange -thymolphthalein

Back (Answer)

• red litmus paper: blue • methyl orange: yellow -thymolphthalein: blue

#16

Front (Question)

What form are bases of metals?

Back (Answer)

Oxides or hydroxides

#17

Front (Question)

What happens when alkalis are added to water?

Back (Answer)

Form negative (OH-) ions

#18

Front (Question)

What makes a solution an alkali?

Back (Answer)

Presence of OH- ions

#19

Front (Question)

Give a word equation of what happens when acid reacts with bases?

Back (Answer)

Acid + base –> salt + water

#20

Front (Question)

What happens when acids are added to water?

Back (Answer)

Form positively charged H+ ions (acidic)

#21

Front (Question)

What happens when alkalis are added to water?

Back (Answer)

Forms negative OH- ions (alkali)

#22

Front (Question)

When does a neutralisation reaction take place?

Back (Answer)

When acid reacts with an alkali

#23

Front (Question)

What happens when substances react together in a neutralisation reaction?

Back (Answer)

H+ ions reacts with OH- ions to produce water

#24

Front (Question)

What is the net ionic equation of acid - alkali neautralisation reaction?

Back (Answer)

H+ + OH- –> H2O