U4 Lesson 3 Check for Understanding
Synthesis , Decomposition Reactions & Combustion
PART ONE: Follow the steps below and predict products of Synthesis & Decomposition reactions
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Determine the Type/Subtype using the Guidelines on the Reference Sheet.
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Predict the products using the guidelines remembering to check charges on new compounds and remembering the diatomic molecules
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Balance the reaction.
Sa 1. 2 Al + 3 S → Al2S3
Da 2. LiCl → Li + Cl
Sa 3. Ca + F2 → CaF2
Sa 4. 2 Mg + O2 → 2 MgO2
D 5. K2S → K2 + S
D 6. 2 NCl3 → 2 N + 3 Cl2
S 7. H2 + I2 → H2I2
D 8. CoP → Co(III) + P
D 9. Fe2S3 → 2 Fe + 3 S
PART TWO: Follow the steps below and predict products of Combustion reactions
Combustion Reactions: Look at this model on your reference sheet. All combustion reactions produce carbon dioxide gas and water. Be sure to balance each reaction.
C 1. 2 C4H10 + 26 O2 → 10 H2O + 8 CO2
C 2. 2 C2H6 + 4 O2 → 6 H2O + 4 CO2
C 3. 2 C2H5OH + 2 O2 → 10 HOH + 4 CO2
| . | reacntants | products |
|---|---|---|
| C | 2 4 | 1 2 4 |
| H | 5 10 | 2 10 |
| O | 2 4 | 2 4 |
| OH | 1 2 | 1 10 |