Question

Please answer fast without any rubbish
I will mark brainliest
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Answer 1

Answer:

Explanation:

In PbO2 , the ratio is 3.21:0.24 ==> 0.5:0.04

In PbO , the ratio is 1.195:0.16 ==> 0.3:0.04

Simple ratio = 0.5:0.3 = 3:5