
Balancing Chemical Equations Concepts
Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the law of conservation of mass state about matter in the universe?
Matter can be created and destroyed.
Matter is constantly increasing.
Matter is only created, not destroyed.
Matter is neither created nor destroyed.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a chemical reaction, what remains unchanged according to the law of conservation of mass?
The number and type of atoms.
The number of molecules.
The temperature.
The volume of the reactants.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a chemical equation used for?
To determine the color of the reactants.
To calculate the speed of a reaction.
To represent the substances involved in a reaction.
To measure the temperature of a reaction.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a balanced chemical equation indicate?
The reaction is complete.
The mass of reactants is greater than the mass of products.
The number and type of atoms are equal on both sides.
The reaction is exothermic.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an unbalanced chemical equation?
An equation with unequal number of atoms on both sides.
An equation with more products than reactants.
An equation that represents a physical change.
An equation that is not written in chemical symbols.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to balance a chemical equation?
To ensure the reaction is fast.
To comply with the law of conservation of mass.
To make the reaction colorful.
To increase the temperature of the reaction.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary method to balance a chemical equation?
Removing some products.
Changing the coefficients of compounds.
Adding more reactants.
Changing the subscripts of molecules.
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