Chemical Reaction STUDY GUIDE

Chemical Reaction STUDY GUIDE

10th - 12th Grade

39 Qs

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Chemical Reaction STUDY GUIDE

Chemical Reaction STUDY GUIDE

Assessment

Quiz

Science

10th - 12th Grade

Medium

Created by

Sarah Kijewski

Used 1+ times

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39 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The substances on the left side of the arrow are...

products

reactants

inhibitors

catalysts

Answer explanation

The substances on the left side of the arrow are reactants.

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

The red numbers in the image below represent ________

subscripts

coefficients

chemical formulas

compounds

Answer explanation

The red numbers in the image below represent coefficients.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2 NaBr + 1 Ca(OH)2 ----> 1 CaBr2 + 2 NaOH

Synthesis (or combination)

Decomposition

Single displacement

Double displacement

Answer explanation

The given chemical equation involves the exchange of ions between the reactants, resulting in the formation of new compounds. This type of reaction is known as double displacement.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2 NH3+ 1 H2SO4 ----> 1 (NH4)2SO4

Synthesis (or combination)

Decomposition

Single displacement

Double displacement

Answer explanation

The correct choice is Synthesis (or combination) because the reaction involves the combination of NH3 and H2SO4 to form (NH4)2SO4.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2 NO2 ----> 2 O2 + N2

Synthesis (or combination)

Decomposition

Single displacement

Double displacement

Answer explanation

The given chemical equation shows the breakdown of 2 NO2 molecules into 2 O2 molecules and 1 N2 molecule, indicating a decomposition reaction.

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What does the Law of Conservation of Mass state?

Matter cannot be gained or lost in a chemical reaction.

Matter can only be lost in a chemical reaction.

Matter can only be gained in a chemical reaction.

Matter can be gained and lost in a chemical reaction. 

Answer explanation

The Law of Conservation of Mass states that matter cannot be gained or lost in a chemical reaction.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the left part of a chemical equation called?
2H2 + O2 --> 2H2O

Reactants

Products 

Yields 

Chemical Equation 

Answer explanation

The left part of a chemical equation is called Reactants, which are the substances present before the reaction occurs.

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