What is the molecular formula of a compound with a molar mass of 425.9 g/mol and is 19.3 g Na, 13.45 g S, and 26.9 g O? SHOW ALL OF YOUR WORK. Answer with 3 significant figures.

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Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

What does the mass of 0.7891 mol of ferric oxide (fe2o3)

Give the set of reactants (including an alkyl halide and a nucleophile) that could be used to synthesize the following ether: draw the molecules on the canvas by choosing buttons from the tools (for bonds and charges), atoms, and templates toolbars, including charges where needed. ch3ch2och2ch2chch3 | ch3