For iron to rust, there should be present?
...For iron to rust, there should be present?
oxygen
moisture
carbondioxide
oxygen and moisture
oxygen, moisture and carbondioxide
Correct answer is D
No explanation has been provided for this answer.
The mass of potassium hydroxide required to make 300.ocm3 of 0.4 moldm-3 solution is {KOH = 56.0}...
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