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Chemistry Final Exam Review

Chemistry

10th Grade

Used 2+ times

Chemistry Final Exam Review
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29 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is a mole in chemistry terms?

a mammal found in Eurasia and North America

an SI unit for measuring the amount of a substance

a benign tumor sometimes found on human skin appearing as a small, sometimes raised area of skin, usually with darker pigment

a Mexican sauce made from chili peppers, other spices and chocolate

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the molar mass of carbon?

6.0 g/mol

12..0 g/mol

22.4 g/mol

6.02 X 10^23 g/mol

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is percent composition of the element hydrogen in the compound methane, CH4?

16%

25.1%

74.9%

100%

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What are the coefficients that would correctly balance this equation?

_____Zn + _____ K2CrO4 ---> _____K + _______ ZnCrO4

2,1,2,1

1,2,3,1

1,2,1,2

1,1,2,1

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which coefficients are required to correctly balance the equation,

C2H2 + O2 --> CO2 + H2O?

1,2,3,2

2,5,4,2

2,4,5,2

2,3,5,2

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What are the respective coefficients needed to balance the equation below?

____N2 + ____H2 ---> _____NH3

1,1,1

1,2,3

1,3,2

3,3,2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following reactions involves two or more substances combining to form a single compound?

single-replacement reaction

synthesis reaction

decomposition reaction

combustion reaction

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