Balancing Chemical Equations PhET
Passage
•
Science
•
6th Grade
•
Practice Problem
•
Medium
Standards-aligned
Kyle Niemis
Used 882+ times
FREE Resource
13 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Where are the reactants in a chemical equation?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where are the products in a chemical equation?
Tags
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do we have to balance chemical equations?
Because all mass must be conserved
Because mass is created in a reaction
Because the mass at the beginning of a reaction is greater than the mass of the products
Because the mass at the end of the reaction is grater than the mass of the reactants
Tags
NGSS.MS-PS1-5
4.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
A number written slightly below and to the right of a chemical symbol that shows how many atoms of that element are in a compound is the (a)
5.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
A number written in front of a chemical formula to indicate how many of that formula are needed for a balanced reaction
(a)
Tags
NGSS.MS-PS1-5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Balance "Make Ammonia". What's the total number of molecules on the reactant (left) side?
2
4
5
6
Tags
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Balance "Make Ammonia". What's the total number of molecules on the product (right) side?
1
2
3
4
Tags
NGSS.MS-PS1-5
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