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Chemical Reactions Test

Authored by Kimber Gravewood

Chemistry

9th - 12th Grade

Chemical Reactions Test
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20 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

What part of the equation does the (1) represent?

product

produces/yields

solid

reactant

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Number seven (7) is indicating ____ of the equation.

reactants

products

equation

formulas

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the symbolic representation of a chemical reaction in the form of symbols and formulas?

chemical change

chemical equation

chemical reaction

Law of Conservation of Mass

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

If a reaction starts with 25g of NaCl it can have which of the following as its products?

10 g of Na and 20 g of Cl2

a total of 10g of products

10 g of Na and 15 g of Cl2

20 g of Na and 10 g of Cl2

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

When balancing chemical equations, you can only change what?

subscripts

formulas

coefficients

products

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

__H2 + __O2 --> __H2O

What coefficients will balance the equation?

2,1,2

1,1,2

1,1,1

2,2,2

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

AlBr3 + __K2SO4 --> KBr + Al2(SO4)3

What is the coefficient of K2SO4 in the balanced equation?

1

2

3

4

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