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Home  arrow Chapter 6  arrow Self-Quiz 3

Self-Quiz 3



This activity contains 10 questions.

Question 1.
Calculate the mass, in grams, of 0.158 moles of iodine pentafluoride.


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Question 2.
The decomposition by heating of solid potassium chlorate yields solid potassium chloride and oxygen gas as products. Write a balanced equation for this reaction.


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Question 3.
How many moles of lead(II) acetate are in 25.4 g of lead(II) acetate?


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Question 4.

How many moles of carbon dioxide are produced in the following reaction when 4.0 x 108 moles of O2 are consumed?
2 C8H18(l) + 25 O2(g) 16 CO2(g) + 18 H2O(l)

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Question 5.

In an oxyacetylene welding torch, acetylene (C2H2) burns in pure oxygen with a very hot flame. How many grams of oxygen are required to react with 52.0 g of acetylene?
C2H2 + O2 CO2 + H2O

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Question 6.
When oxidation occurs:


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Question 7.
What is the oxidation number of carbon in carbon dioxide?


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Question 8.

For the reaction below, which of the following statements is (are) true?

Mg + Cu2+(aq) Mg2+(aq) + Cu

(i) Mg is oxidized; (ii) Cu2+ is oxidized; (iii) Mg is reduced; (iv) Cu2+ is reduced


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Question 9.
Which of the following is a redox reaction?


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Question 10.

Photosynthesis (6 CO2 + 6 H2O + energy C6H12O6 + 6 O2) is a very important reaction because it provides us with nutrients and oxygen. Which of the following statements regarding photosynthesis is true?

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