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a sample of lead had a mass of 150 g. The molar mass of lead is 207.19 g. How many moles of lead does the sample contain?
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The difference between the atomic number of an element and the element’s atomic mass is the number of ions.
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Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)
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What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate
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Chemistry, 22.06.2019 22:30
Why is it possible for different microorganisms to extract energy not only from carbohydrates and other biological molecules but from a large variety of substances?
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a sample of lead had a mass of 150 g. The molar mass of lead is 207.19 g. How many moles of lead doe...
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