Chemical equations
Authored by Hannah Torrans
Science
7th - 8th Grade
NGSS covered
Used 3+ times
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38 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
How many Oxygens are in this molecule?
(OH)2
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
What are the smaller numbers that you CANNOT change in a chemical equation?
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
What are the larger numbers that you CAN CHANGE in a chemical equation?
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
How many HCl molecules do you need to balance this equation?
Mg + __HCl ---> MgCl2 + H2
Tags
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What type of reaction is this?
__H2O2 ----> __H2O + O2
Tags
NGSS.MS-PS1-2
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What law governs the balancing of chemical equations?
Tags
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Balance this equation: _Zn + _O2 --> _ZnO
1, 1, 2
2, 1, 2
1, 1, 1
2 ,2, 2
Tags
NGSS.MS-PS1-5
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