Chemical Reactions & Conservation of Mass
Authored by Jenece Clark
Science
7th Grade
NGSS covered
Used 6+ times
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32 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
According to FIGURE 1, how many total atoms make up the molecule glucose?
16
12
18
24
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The names of many covalent compounds use prefixes. According to Table 1, how many nitrogen atoms are found in the compound Dinitrogen monoxide?
1
2
3
4
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What does the absence of a prefix indicate?
That there are no atoms of a specific element in the compound.
That there is only one of a specific atom in the compound.
That there are too many of a specific atom to count in the compound.
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
In the compound 2CO, what is the 2 called?
a number
the coefficient
a subscript
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
For an equation to be balanced, all ________ must be counted.
molecules
compounds
atoms
Tags
NGSS.MS-PS1-5
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Read the Math Practice: Counting Atoms.
How many oxygen atoms are there in the compound Mg(OH)2?
1
2
3
Tags
NGSS.MS-PS1-1
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Read the Math Practice: Counting Atoms.
How many oxygen atoms are there in the compound Al2(SO4)3?
4
3
12
16
Tags
NGSS.MS-PS1-1
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