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WorksheetsFuels Unit Part 1 Test Review
Total questions: 22
Worksheet time: 13mins
In an endothermic reaction, heat is ...
taken in
given out
O2(g) + 2 H2 (g) → 2 H2O (g) + Energy
endothermic
exothermic
6 CO2+ 6 H2O + Energy → C6H12O6 + 6 O2
endothermic reaction
exothermic reaction
A reaction is endothermic if the change in energy (ΔH) is
Positive
Negative
Zero
A reaction is exothermic if the change in energy (ΔH) is
Positive
Negative
Zero
Which reaction type is this?
Exothermic
Endothermic
Which reaction type is this?
Exothermic
Endothermic
Na3PO4 + KOH → 3 NaOH + K3PO4
Synthesis Reaction
Single Displacement Reaction
Double Replacement Reaction
Decomposition Reaction
Combustion
Synthesis Reaction
Decomposition Reaction
Single Displacement Reaction
Double Displacement Reaction
Combustion
Cl2 + 2 KI → I2 + 2 KCl
Synthesis Reaction
Single Replacement Reaction
Double Replacement
Reaction
Decomposition Reaction
Combustion
2 C5H10 + 15 O2 → 10 CO2 + 10 H2O
Synthesis Reaction
Decomposition Reaction
Single Replacement Reaction
Double Replacement Reaction
Combustion
2 Ag2O → 4 Ag + O2
Double Replacement Reaction
Synthesis Reaction
Single Replacement Reaction
Decomposition Reaction
Combustion
Using the table of average bond energies below the image, the ΔH for the reaction in kJ is.....
+ 160 kJ
-63 kJ
- 160 kJ
-217 kJ
Does breaking bonds require energy, release energy, or not involve energy at all?
requires energy to break
releases energy when broken
No energy involved
Forming a chemical bond...
requires energy
releases energy
is unrelated to energy
