classify each reaction below as either formation, decomposition, replacement (single or double), or…
classify each reaction below as either formation, decomposition, replacement (single or double), or combustion. note that the equations are not balanced.\n1. nh₃ + hcl → nh₄cl\n2. c₁₂h₂₂o₁₁ + o₂ → co₂ + h₂o\n3. al₂s₃ → al + s\n4. naoh + cuso₄ → na₂so₄ + cu(oh)₂\n5. fe + o₂ → fe₂o₃\n6. cl₂ + kbr → kcl + br₂\n7. nh₄no₃ → n₂o + h₂o\n8. mg₃(po₄)₂ + h₂ → mg + h₃po₄\n9. c₄h₁₂ + o₂ → h₂o + co₂\n10. alcl₃ + na₂so₄ → al₂(so₄)₃ + nacl
Answer
Explanation:
Step1: Recall reaction - type definitions
Formation reaction: two or more substances combine to form one product. Decomposition reaction: one substance breaks down into two or more substances. Replacement reaction: a more reactive element replaces a less reactive element in a compound (single - replacement) or the positive and negative ions in two ionic compounds exchange places (double - replacement). Combustion reaction: a substance reacts with oxygen, usually producing carbon dioxide and water.
Step2: Analyze reaction 6
In the reaction $Cl_2+KBr\rightarrow KCl + Br_2$, chlorine ($Cl_2$) is a more reactive non - metal than bromine ($Br_2$). Chlorine replaces bromine in potassium bromide ($KBr$), so it is a single - replacement reaction.
Step3: Analyze reaction 7
In the reaction $NH_4NO_3\rightarrow N_2O + H_2O$, ammonium nitrate ($NH_4NO_3$) breaks down into dinitrogen monoxide ($N_2O$) and water ($H_2O$), so it is a decomposition reaction.
Step4: Analyze reaction 8
In the reaction $Mg_3(PO_4)_2+H_2\rightarrow Mg + H_3PO_4$, hydrogen ($H_2$) replaces magnesium ($Mg$) in magnesium phosphate ($Mg_3(PO_4)_2$), so it is a single - replacement reaction.
Answer:
- Single - replacement
- Decomposition
- Single - replacement