1. The document contains a chemistry assignment asking a student to classify 10 chemical reactions as synthesis, decomposition, single replacement, double replacement, or combustion. Some reactions can be both synthesis and combustion. 2. The reactions involve combinations of elements and compounds, including hydrogen, oxygen, water, zinc, sulfuric acid, carbon monoxide, mercury oxide, potassium bromide, silver nitrate, calcium oxide, calcium hydroxide, platinum, and calcium sulfate. 3. The student is asked to write the classification for each reaction in the blank provided.

1. Mrs. Meer Name_____________________________ #_____
Chemistry Date______________________ Period_________
Classification of Chemical Reactions
Classify the reactions below as synthesis, decomposition, single replacement, double replacement,
or combustion. A few reactions are both synthesis and combustion.
1. 2 2 22H + O 2H O→ ________________________
2. 2 2 2
elect
2H O 2H + O⎯⎯⎯→ ________________________
3. 2 4 4 2Zn + H SO ZnSO + H→ ________________________
4. 2 22CO + O 2CO→ ________________________
5. 22HgO 2Hg + OΔ
⎯⎯→ ________________________
6. 2 22KBr + Cl 2KCl + Br→ ________________________
7. 2 2CaO + H O Ca(OH)→ ________________________
8. 3 3AgNO + NaCl AgCl + NaNO→ ________________________
9. 2 2 2 2
Pt
2H O 2H O + O⎯⎯→ ________________________
10. 2 2 4 4 2Ca(OH) + H SO CaSO + 2H O→ ________________________