Review I Constants I Periodic Table atoms of carbon-12 (1.992646 x 10 g), Calculate the mass in grams of one mole of each of the following (the mass of a single item is given in parentheses): Express your answer using seven significant figures. 12.00000 g/mol Submit Previous Answers Answer Requested Part D doughnuts (59 g) Express your answer using two significant figures. 3.6x1025 g/mol Submit Previous Answers Correct Part E Calculate the mass of one mole of carbon-12 atoms provided it equals to the sum of the masses of the particless that it contains. Express your answer using seven significant figures. ΑΣφ g/mol

Q: how many grams of oxygen gas are produced if 40.0 g of potassium chlorate is decomposed

A: Given :- 2KClO3(s)→2KCl(s)+3O2(g)                 Mass of KClO3 = 40.0 g  To calculate :- mass of O2…

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A: Since you have posted multiple questions, we are entitled to answer the first only.

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.