SCHS C5 Chemical Changes AQA GCSE

• PH scale

• pH ruler

• pH scale

• pH statistical tables

Tags

NGSS.MS-PS1-2

What pH range would you get for an acid?

• 0-6

• 7

• 7-14

• 2-10

Which pH level indicates a strong alkali?

• 1-3

• 4-6

• 8-11

• 12-14

Which pH level indicates a weak acid?

• 1-3

• 4-6

• 8-11

• 12-14

Which pH levels indicated a strong acid?

• 1-3

• 4-6

• 8-11

• 12-14

What happens to the pH of an acid during neutralisation?

• It stays the same

• It moves toward pH 1

• It moves towards pH 7

• It moves towards pH 14

What other laboratory substance can you use to test if colourless substance is an acid or an alkali?

• Catalyst

• Salt

• Universal Indicator

• Water

Which of the following statements is true concerning acids and bases?

• acids and bases don't react with each other

• acids mixed with bases neutralize each other

• acids mixed with bases make stronger bases

• acids mixed with bases make stronger acids

Tags

NGSS.MS-PS1-2

A _________ acid has a higher pH (Still below 7). The concentration of H+ is lower and acid is not fully dissociated into its ions.

• weak
• ore
• reduction
• salt
• precipitate

A ______________ acid has a low pH. This means concentration of H+ is high and acid is fully dissociated into its ions.

• strong
• weak
• carbon
• dilute
• nitric