Balancing Equations and Mass Conservation
Authored by Bobby Watson
Science
8th Grade
NGSS covered
Used 1+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the law of conservation of mass?
Mass can be created and destroyed in a chemical reaction.
Mass is neither created nor destroyed in a chemical reaction.
Mass is always increased in a chemical reaction.
Mass is always decreased in a chemical reaction.
Tags
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a balanced chemical equation?
Tags
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tags
NGSS.MS-PS1-5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2
3
4
5
Tags
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements is true about a balanced chemical equation?
The number of atoms of each element is the same on both sides of the equation.
The number of molecules is the same on both sides of the equation.
The number of compounds is the same on both sides of the equation.
The number of moles is the same on both sides of the equation.
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tags
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in balancing a chemical equation?
Change the subscripts of the compounds.
Count the number of atoms of each element in the reactants and products.
Add coefficients to balance the atoms.
Remove compounds from the equation.
Tags
NGSS.MS-PS1-5
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