Which chemical equations are balanced?
Authored by A. Reeves
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17 questions
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1.
OPEN ENDED QUESTION
30 sec • Ungraded
First name
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2.
OPEN ENDED QUESTION
30 sec • Ungraded
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3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these chemical equations is balanced?
N₂ + H₂ → NH₃
2 N₂ + H₂ → NH₃
N₂ + H₂ → 2 NH₃
N₂ + 3 H₂ → 2 NH₃
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these chemical equations is balanced?
NO₂ + H₂O → HNO₃ + NO
3 NO₂ + H₂O → HNO₃ + NO
3 NO₂ + H₂O → 2 HNO₃ + NO
3 NO₂ + H₂O → 2 HNO₃ + 3 NO
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these chemical equations is balanced?
CaC₂ + H₂O → C₂H₂ + Ca(OH)₂
CaC₂ + 2 H₂O → C₂H₂ + Ca(OH)₂
CaC₂ + 2 H₂O → C₂H₂ + 2 Ca(OH)₂
3 CaC₂ + H₂O → C₂H₂ + 3 Ca(OH)₂
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these chemical equations is balanced?
Cu₂O + O₂ → CuO
2 Cu₂O + O₂ → CuO
Cu₂O + O₂ → 2 CuO
2 Cu₂O + O₂ → 4 CuO
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these chemical equations is balanced?
NH₃+ O₂ → NO + H₂O
2 NH₃+ O₂ → 2 NO + H₂O
5 NH₃+ 3 O₂ → 4 NO + 6 H₂O
4 NH₃+ 5 O₂ → 4 NO + 6 H₂O
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