jackyinfante1
jackyinfante1
24-10-2022
Mathematics
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What percentage of the total mass of KHCO₃ is made up by nonmetallic elements? a. 17% b. 83% c. 61% d. 20% e. 50%
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Helpers are needed to prepare for the fete. Each helper can make either 2 large cakes per hour, or 35 small cakes per hour. The kitchen is available for 3 hour
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Element X is found in two forms: 90.0% is an isotope that has a mass of 20.0, and 10.0% is an isotope that has a mass of 22.0. What is the atomic mass of elemen
The biologist discovered that from 1988 to 1993, the average beak size declined to pre-1981 levels. The reversal in beak size from 1988 to 1993 was most likely
