
Exploring Chemical Equations

Interactive Video
•
Science
•
6th - 10th Grade
•
Hard
Standards-aligned

Lucas Foster
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What do we call the substances we start with in a chemical reaction?
Catalysts
Reactants
Products
Enzymes
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a chemical equation, what does the arrow symbol (→) represent?
Equals
Yields
Subtraction
Addition
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a word equation?
Na + Cl → NaCl
Magnesium + Oxygen → Magnesium Oxide
C + O2 → CO2
H2 + O2 → H2O
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the chemical formula for water?
H2O
O2
H2
HO2
Tags
NGSS.MS-PS1-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the law of conservation of mass state?
Matter cannot be created or destroyed.
Matter can be created or destroyed.
Energy can be created or destroyed.
Energy cannot be created or destroyed.
Tags
NGSS.MS-PS1-5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do we balance chemical equations?
To change the reactants into products.
To make the equation look neat.
To create new elements.
To ensure the same number of atoms of each element on both sides.
Tags
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the coefficient in a chemical equation?
The type of chemical bond.
The number of molecules of a substance.
The number of atoms in a molecule.
The state of matter.
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