Flash cards

Acids and alkalis

1. Water would be best described as
pH8
Weak alkali
pH7
Neutral
pH1
Strong acid
pH6
A weak acid
2. If Magnesium hydroxide (indigestion powder) were added to vinegar which of the answers would best describe what would happen?
3. If weak lemon juice was added to Universal Indicator what colour would it turn?
Blue
Weak alkali (pH8, 9 or 10)
Green
Neutral (pH7)
Yellow
Weak acid (pH5 -6)
Red
Strong acid (pH 1or 2)
Purple
Strong alkali (pH 13,14)