Chemistry Questions 1. What is the molar mass of the compound show below? E. 90.

Question

Chemistry Questions

1. What is the molar mass of the compound show below?

E. 90.13 amu

2. Tin (II) fluoride can be made by the following reaction: Sn(s) + 2 HF(g) ? SnF2(s) + H2(g). What is the maximum amount of SnF2 that can be produced when 0.480 moles of Sn are mixed with 0.720 moles of HF?

3. Which sample contains the largest number of molecules?

4. The chemical equation: KClO3(s) ? KCl(s) + O2(g) is not balanced. Balance this equation, then select the statement that best describes the balanced equation.

Explanation / Answer

1-b

2-d

3-a

4-c

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