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U1-3-0 - N4 Revision

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Total cards: 14•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (14)

#1
Front (Question)

What is a pH scale?

Back (Answer)

A measure of the hydrogen ion concentration in a solution. Low pH = high concentration

#2
Front (Question)

Acidic solutions have pH…

Back (Answer)

less than 7.

#3
Front (Question)

Alkaline solutions have pH…

Back (Answer)

more than 7.

#4
Front (Question)

Neutral solutions have pH…

Back (Answer)

equal to 7.

#5
Front (Question)

Base

Back (Answer)

A substance which can neutralise an acid

#6
Front (Question)

Acid

Back (Answer)

Substance which contains hydrogen ions (H+)

#7
Front (Question)

Alkali

Back (Answer)

Soluble base

#8
Front (Question)

Sodium chloride is a salt. Where does the ‘sodium’ part come from?

Back (Answer)

Parent base (sodium oxide, hydroxide or carbonate)

#9
Front (Question)

Sodium chloride is a salt. Where does the ‘chloride’ part come from?

Back (Answer)

Parent acid (hydrochloric acid)

#10
Front (Question)

Phosphoric acid makes …. salts.

Back (Answer)

phosphate

#11
Front (Question)

Sulfuric acid makes …. salts.

Back (Answer)

sulfate

#12
Front (Question)

Colour of universal indicator in acid

Back (Answer)

Red (red/orange/yellow)

#13
Front (Question)

Colour of universal indicator in alkalis

Back (Answer)

Blue/purple

#14
Front (Question)

Colour of universal indicator in neutral solutions

Back (Answer)

Green