Classifying Chemical Reactions
By Stacy Goldstein
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Last updated about 4 years ago
15 Questions
Classifying Chemical Reactions
Choose the correct type of reaction(s)
1 point
1
Question 1
1.
What type of reaction is this and how do you know?
CaCO3 → CaO + CO2
What type of reaction is this and how do you know?
CaCO3 → CaO + CO2
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1
Question 2
2.
2H2 + O2 → 2H2O
2H2 + O2 → 2H2O
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1
Question 3
3.
2K + 2H2O → H2 + 2KOH
2K + 2H2O → H2 + 2KOH
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1
Question 4
4.
CaCO3 + 2HCl → CaCl2 + H2CO3
CaCO3 + 2HCl → CaCl2 + H2CO3
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1
Question 5
5.
2KClO3 → 2KCl + 3O2
2KClO3 → 2KCl + 3O2
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1
Question 6
6.
Ca + 2HCl → CaCl2 + H2
Ca + 2HCl → CaCl2 + H2
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1
Question 7
7.
2SO2 + O2 → 2SO3
2SO2 + O2 → 2SO3
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Question 8
8.
Pb(NO3 )2 + 2HCl → PbCl2 + 2NHO3
Pb(NO3 )2 + 2HCl → PbCl2 + 2NHO3
1 point
1
Question 9
9.
What type of reaction is this and how do you know?
Cu + 2AgNO3 → 2Ag + Cu(NO3 )2
What type of reaction is this and how do you know?
Cu + 2AgNO3 → 2Ag + Cu(NO3 )2
1 point
1
Question 10
10.
2Na + Cl2 → 2NaCl
2Na + Cl2 → 2NaCl
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1
Question 11
11.
CH4 + 2O2 → CO2 + 2H2O
CH4 + 2O2 → CO2 + 2H2O
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1
Question 12
12.
Pb(NO3 )2 + 2KI → PbI2 + 2KNO3
Pb(NO3 )2 + 2KI → PbI2 + 2KNO3
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1
Question 13
13.
2Fe + O2 → 2FeO
2Fe + O2 → 2FeO
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1
Question 14
14.
Zn + 2HCl → H2 + ZnCl2
Zn + 2HCl → H2 + ZnCl2
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1
Question 15
15.
What type of reaction(s) are used above? How do you know?