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Chemical Changes And Structure #4: Acids And Bases

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

Card preview (24)

#1
Front (Question)

Acids have a pH of…

Back (Answer)

Less than 7

#2
Front (Question)

Pure Water + Neutral Solutions have a pH…

Back (Answer)

of 7

#3
Front (Question)

Alkalis have a pH of…

Back (Answer)

Greater than 7

#4
Front (Question)

Why do chemists use electronic pH probes to accurately measure the pH of a solution?

Back (Answer)

Because using a colour chart is subjective

#5
Front (Question)

What do chemists use to accurately measure the pH of a solution?

Back (Answer)

pH probes

#6
Front (Question)

Examples of Acids

Back (Answer)

• Vinegar • Lemonade • Soda Water • Coke

#7
Front (Question)

Examples of Alkalis

Back (Answer)

• Baking Soda • Dishwasher Powder • Bleach

#8
Front (Question)

Acids are compounds that produce ____ when dissolved in water

Back (Answer)

H+ (aq) ions

#9
Front (Question)

Alkalis are compounds that produce ____ when dissolved in water

Back (Answer)

OH- (aq) ions

#10
Front (Question)

Formula of Hydrochloric Acid

Back (Answer)

HCl

#11
Front (Question)

Ions present in Hydrochloric acid (HCl)

Back (Answer)

H+ (aq) and Cl- (aq)

#12
Front (Question)

Formula for sulfuric acid

Back (Answer)

H2 SO4

#13
Front (Question)

Ions Present in Sulfuric Acid (H2SO4)

Back (Answer)

2H+ (aq) and SO4 2- (aq)

#14
Front (Question)

Formula for Nitric Acid

Back (Answer)

HNO3

#15
Front (Question)

Ions present in Nitric Acid (HNO3)

Back (Answer)

H+(aq) and NO3 - (aq)

#16
Front (Question)

Formula for sodium hydroxide

Back (Answer)

NaOH

#17
Front (Question)

Ions Present in Sodium Hydroxide (NaOH)

Back (Answer)

Na+ (aq) and OH- (aq)

#18
Front (Question)

Ions present in Potassium Hydroxide (KOH)

Back (Answer)

K+ (aq) and OH- (aq)

#19
Front (Question)

Formula of Potassium Hydroxide

Back (Answer)

KOH

#20
Front (Question)

Formula for Calcium Hydroxide

Back (Answer)

CaOH2

#21
Front (Question)

Ions present in Calcium Hydroxide (CaOH2)

Back (Answer)

Ca 2+ (aq) and 2OH-

#22
Front (Question)

How can you tell if something is an acid or alkali? ***

Back (Answer)

• It has the word acid in its name if it’s an acid • It has the word hydroxide (OH-) in it if it’s an alkali

#23
Front (Question)

What is the concentration of H+ (aq) and OH- (aq) in neutral solutions?

Back (Answer)

It’s equal

#24
Front (Question)

Give an example of equal concentration in neutral solutions

Back (Answer)

H2O ⇌ H+ (aq) + OH- (aq)