Why must chemical equations be balanced?

Based on the Law of Conservation of Matter, matter cannot be created or destroyed.

So that the equation doesn't explode

The reaction won't happen until it is balanced

Based on the Law of Conservation of Energy, energy cannot be created or destroyed.e

Which examples indicates that a chemical reaction has occurred?

When baking soda and vinegar are mixed bubbling occurs

Water evaporates when you boil it

Ammonium nitrate dissolves in water

A solution changes from blue to green when you add yellow dye

When balancing a chemical equation you should _____.

make sure the number of elements is the same on both sides of the equation

make sure the subscript for each element is the same on both sides of the equation

makes sure the coefficents for each compound are the same on both sides for the equation

make sure the superscript for each element is the same on both sides of the equation

What must be true for a double displacement reaction to occur?

One of the products must be a s, l, or g

The metal must be higher on the activity series

Both products must be a s, l, or g

In order for a chemical reaction to occur...

The molecules must have high energy

The molecules must be in the same state of matter

Chemical Reactions

10th - 12th Grade

•

45 Qs

Similar activities

Long Quiz

9th - 10th Grade

•

40 Qs

Solutions, Acids, & Bases Review

10th Grade

•

50 Qs

Chemistry 1st Half Book Test

11th - 12th Grade

•

40 Qs

Hon Chem Unit 2 Ch 4 & 6 Isotopes, Periodic Table

10th - 12th Grade

•

40 Qs

Chemistry revision - Water

7th - 10th Grade

•

40 Qs

Assessment on Chemical Reaction and Biomolecules

10th Grade

•

40 Qs

Chapter 6 Sections 4 and 5 Test Review

10th Grade

•

42 Qs

Bunsen Burners

12th Grade

•

40 Qs

Chemical Reactions

Quiz

•

Chemistry

•

10th - 12th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-PS1-7, HS-PS1-2, MS-PS1-2

Standards-aligned

Courteney Hinkson

Used 45+ times

FREE Resource

45 questions

Show all answers

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the law of conservation of mass?

Matter changes when reacted or changed.

The mass of all reactants are changed during a physical or chemical change

The mass of the reactants is the same as the mass of the products

The mass of the products is different than the mass of the reactants.

What type of chemical reaction is this one?
Al(OH)₃ --> Al₂O₃ + H₂O

Decomposition

Combustion

Synthesis

Single Replacement

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What type of chemical reaction is this one?
Ca + MgCl₂ --> CaCl₂ + Mg

Decomposition

Combustion

Synthesis

Single Replacement

What type of chemical reaction is this one?
Copper (II) oxide and carbon dioxide react to form copper (II) carbonate

Decomposition

Combustion

Synthesis

Single Replacement

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What type of chemical reaction is this one?
C₂H₂ + O₂ --> CO₂ + H₂O

Decomposition

Combustion

Synthesis

Single Replacement

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Balance this equation, Ca + H₂O --> CaO + H₂

Ca + 2H₂O --> CaO + 2H₂

2Ca + H₂O --> CaO + H₂

Its balanced as it is

Cannot be balanced

What type of chemical reaction is this one?
Aluminum hydroxide breaks down to form aluminum oxide and water

Decomposition

Combustion

Synthesis

Single Replacement

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever

or continue with

Microsoft

Apple

Others

Already have an account?

Similar Resources on Wayground

40 questions

Periodic Table

Quiz

•

9th - 12th Grade

42 questions

covalent review

Quiz

•

10th Grade

50 questions

Chemical Bonds-AH

Quiz

•

9th Grade - University

44 questions

PS Exam #3

Quiz

•

9th - 12th Grade

44 questions

Chapter 3 Measurements Review

Quiz

•

10th - 12th Grade

40 questions

Class Expectations and 1st semester review

Quiz

•

10th Grade

41 questions

Chemistry Lab Equipment Practice Quiz

Quiz

•

10th Grade

50 questions

Rate of reaction/Kadar tindakbalas

Quiz

•

10th Grade

Popular Resources on Wayground

15 questions

Fractions on a Number Line

Quiz

•

3rd Grade

20 questions

Equivalent Fractions

Quiz

•

3rd Grade

25 questions

Multiplication Facts

Quiz

•

5th Grade

54 questions

Analyzing Line Graphs & Tables

Quiz

•

4th Grade

$fractions$

22 questions

fractions

Quiz

•

3rd Grade

20 questions

Main Idea and Details

Quiz

•

5th Grade

20 questions

Context Clues

Quiz

•

6th Grade

15 questions

Equivalent Fractions

Quiz

•

4th Grade

Discover more resources for Chemistry

20 questions

Types of Chemical Reactions

Quiz

•

9th - 12th Grade

10 questions

Exploring Stoichiometry Concepts

Interactive video

•

6th - 10th Grade

20 questions

Naming & Writing Chemical Formulas

Quiz

•

10th Grade

20 questions

Practice: E-Con, Orbital Notation, Noble Gas Notation

Quiz

•

10th Grade

20 questions

Covalent Bonding

Quiz

•

10th Grade

10 questions

Periodic Table Families and Groups

Quiz

•

10th Grade

20 questions

electron configurations and orbital notation

Quiz

•

9th - 12th Grade

22 questions

Solubility Curve Practice

Quiz

•

10th Grade

Chemical Reactions

45 questions

What is the law of conservation of mass?

What type of chemical reaction is this one?
Al(OH)₃ --> Al₂O₃ + H₂O

What type of chemical reaction is this one?
Ca + MgCl₂ --> CaCl₂ + Mg

What type of chemical reaction is this one?
Copper (II) oxide and carbon dioxide react to form copper (II) carbonate

What type of chemical reaction is this one?
C₂H₂ + O₂ --> CO₂ + H₂O

Balance this equation, Ca + H₂O --> CaO + H₂

What type of chemical reaction is this one?
Aluminum hydroxide breaks down to form aluminum oxide and water

What type of chemical reaction is this one?
Silver oxide and nitrogen react to form silver nitrate

What type of chemical reaction is this one? Ca + MgCl₂ --> CaCl₂ + Mg

What coefficients are needed to correctly balance the equation?
Bismuth and oxygen gas react to form dibismuth trioxide

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Chemistry

Chemical Reactions

45 questions

What is the law of conservation of mass?

What type of chemical reaction is this one?Al(OH)3 --> Al2O3 + H2O

What type of chemical reaction is this one?Ca + MgCl2 --> CaCl2 + Mg

What type of chemical reaction is this one?Copper (II) oxide and carbon dioxide react to form copper (II) carbonate

What type of chemical reaction is this one?C2H2 + O2 --> CO2 + H2O

Balance this equation, Ca + H2O --> CaO + H2

What type of chemical reaction is this one?Aluminum hydroxide breaks down to form aluminum oxide and water

What type of chemical reaction is this one?Silver oxide and nitrogen react to form silver nitrate

What type of chemical reaction is this one? Ca + MgCl2 --> CaCl2 + Mg

What coefficients are needed to correctly balance the equation? Bismuth and oxygen gas react to form dibismuth trioxide

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Chemistry

What type of chemical reaction is this one?
Al(OH)₃ --> Al₂O₃ + H₂O

What type of chemical reaction is this one?
Ca + MgCl₂ --> CaCl₂ + Mg

What type of chemical reaction is this one?
Copper (II) oxide and carbon dioxide react to form copper (II) carbonate

What type of chemical reaction is this one?
C₂H₂ + O₂ --> CO₂ + H₂O

Balance this equation, Ca + H₂O --> CaO + H₂

What type of chemical reaction is this one?
Aluminum hydroxide breaks down to form aluminum oxide and water

What type of chemical reaction is this one?
Silver oxide and nitrogen react to form silver nitrate

What type of chemical reaction is this one? Ca + MgCl₂ --> CaCl₂ + Mg

What coefficients are needed to correctly balance the equation?
Bismuth and oxygen gas react to form dibismuth trioxide