Flash cards

Acids and alkalis

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