The PH of pure water at 25°C, kw=1×10-4____________?
The PH of pure water at 25°C, kw=1×10-4____________?
A. 0
B. 7
C. 14
D. None of above
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D. allPercentage of sulfuric acid in lead accumulator is__________________?
Percentage of sulfuric acid in lead accumulator is__________________?A. 40%
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C. 30%
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B. Ba > Mg
C. Lu > Ce
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Identification of the components of a sample is_________________?A. Quantitative analysis
B. Qualitative analysis
C. Stoichiometry
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A 10 volume solution of H2O2 means_______?A. 10 grams of H2O2 solution liberate 10 mL of O2 at STO
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B. to form negative ions
C. gain electrons
D. all are possible