UNIT 5 TEST

Write the correct number to indicate whether the reaction type is (1) DECOMPOSITION, (2) DIRECT COMBINATION, (3) SINGLE REPLACEMENT, or (4) DOUBLE REPLACEMENT.

A reaction occurs in which only one product is created.

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Write the correct number to indicate whether the reaction type is (1) DECOMPOSITION, (2) DIRECT COMBINATION, (3) SINGLE REPLACEMENT, or (4) DOUBLE REPLACEMENT.

Ca(NO₃)₂ + H₂SO₄ --> CaSO₄ + 2HNO₃

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Tags

NGSS.MS-PS1-5

Write the correct number to indicate whether the reaction type is (1) DECOMPOSITION, (2) DIRECT COMBINATION, (3) SINGLE REPLACEMENT, or (4) DOUBLE REPLACEMENT.

Cu + 2AgCH₃COO --> Cu(CH₃COO)₂ + 2Ag

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Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

Write the correct number to indicate whether the reaction type is (1) DECOMPOSITION, (2) DIRECT COMBINATION, (3) SINGLE REPLACEMENT, or (4) DOUBLE REPLACEMENT.

Making water: 2H₂ + O₂ --> 2H₂O

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Write the correct number to indicate whether the reaction type is (1) DECOMPOSITION, (2) DIRECT COMBINATION, (3) SINGLE REPLACEMENT, or (4) DOUBLE REPLACEMENT.

Two elements break apart to form two new compounds.

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Write the correct number to indicate whether the reaction type is (1) DECOMPOSITION, (2) DIRECT COMBINATION, (3) SINGLE REPLACEMENT, or (4) DOUBLE REPLACEMENT.

Zn + 2HCl --> ZnCl₂ + H₂

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Cooking eggs in a frying pan is an example of a...

• nuclear reaction

• physical change

• chemical change

• phase change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

A reaction in which heat is absorbed is

• exothermic

• endothermic

• caloric

• acaloric

Tags

NGSS.MS-PS1-4

Which of the following IS considered evidence of a chemical change? (Select all that apply.)

• formation of a precipitate

• change in color

• change in odor

• change in shape

Tags

NGSS.MS-PS1-2

When silver nitrate solution is mixed with sodium chloride solution, a white solid forms (a precipitate) immediately and the container gets extremely cold. Which of the following is a true statement regarding the observed change.

• The change is probably only physical because there is no change in temperature.

• The change is probably only chemical because no gas is released.

• The change is probably physical because a precipitate forms.

• The change is probably chemical because a precipitate forms and there is a change in temperature.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4