Chemical Reactions Quiz
Authored by Lainey Thwing
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8th Grade
Used 7+ times
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49 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a balanced chemical equation?
N₂ + O₂ → 2N₂O
2Al + 3NiBr₂ → 2AlBr3 + 3Ni
KI + Cl₂ → 2KCl + I₂
All the above are balanced chemical equations.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many moles of ammonia are produced by the following reaction?
1
2
3
6
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Which of the following are evidences of a chemical change?
A precipitate forms.
Bubbles form.
A change in color occurs.
A change in phase from a liquid to a gas occurs.
A change in temperature occurs.
4.
OPEN ENDED QUESTION
3 mins • 1 pt
A combination of chemical formulas and symbols that models a chemical reaction is a(n) chemical equation.
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
The mass of one mole of a substance is its molar mass.
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6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What kind of reaction occurs when water breaks up into hydrogen and oxygen gas?
decomposition
double-replacement
single-replacement
synthesis
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What kind of reaction is Ba + 2HCl → BaCl₂ + H₂?
decomposition
double-replacement
single-replacement
synthesis
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