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- Multiple ChoicePlease save your changes before editing any questions.
What does the number 3 represent in 4NH3?
Subscript
Superscript
Coefficient
- Multiple ChoicePlease save your changes before editing any questions.
What does the number 4 represent in 4NH3?
Subscript
Superscript
Coefficient
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How many Nitrogen (N) atoms are in 4NH3?
4
1
3
12
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How many Hydrogen (H) atoms are in 4NH3?
4
1
3
12
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How many total molecules is 4NH3?
4
1
3
12
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How many total atoms make up 4NH3?
4
16
3
12
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In the equation shown, what are the reactant(s)?
N2 + H2
NH3
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In the equation shown, what are the product(s)?
N2 + H2
NH3
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Is this equation balanced?
Yes
No
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Is this equation balanced?
Yes
No
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Is this equation balanced?
Yes
No
- Multiple ChoicePlease save your changes before editing any questions.
To balance an equation you should:
ONLY change subscripts.
ONLY change coefficients.
Change BOTH subscripts and coefficients.
- Multiple ChoicePlease save your changes before editing any questions.
Which reactant is missing from the equation shown?
(What should go in the place of the "X"?)
One hydrogen atom.
Three hydrogen atoms.
Four oxygen atoms.
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following is a chemical reaction?
Sodium and chlorine atoms bond to form salt molecules.
Ice melts to form water.
Carbon dioxide freezes to form dry ice.
Salt and water mix to form salt water.