What is weak acid?
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Which gas is used in hospitals for the artificial respiration ?
What is the use of nitrogen in air ?
what are the role of chemistry education in sustainable development
Why would we all suffocate, if all the green plants were killed ?
Why ph scale range is 14? Why it is not less or not greater than 14?
Is air mixture or compound ?
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Explain about Oxide ?
Explain the Matter?
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How do you express the total hardness of water?
which gas is used in preaparation of bit salt