Question

classifying chemical reactions practice
synthesis

• two or more simple substances combine to form a single, more complex product.

(general form: a+b→ab)
decomposition

• a single compound breaks down into two or more simpler substances. (general form:

ab→a+b)
combustion

• a substance (usually a hydrocarbon) rapidly reacts with oxygen (o2), producing heat,

light, and typically forming carbon dioxide (co2) and water (h2o). (general form for
hydrocarbons: cxhy+o2→co2+h2o)
single replacement

• one element replaces another element in a compound. a more reactive element takes

the place of a less reactive element. (general form: a+bc→ac+b or a+bc→ba+c)
double replacement

• the positive ions (cations) of two different ionic compounds exchange places, often

resulting in the formation of a precipitate, a gas, or water. (general form:
ab+cd→ad+cb)
please classify each of the following reaction as a synthesis (s), decomposition (d),
combustion (c), single replacement (sr), or double replacement (dr). if a reaction can be
classified as more than one type, include both.

Explanation:

Step1: Analyze reaction 1

Two substances \(Na\) and \(Cl_2\) combine to form \(NaCl\).

Step2: Analyze reaction 2

A single compound \(H_2O\) breaks down into \(H_2\) and \(O_2\).

Step3: Analyze reaction 3

Hydrocarbon \(CH_4\) reacts with \(O_2\) to form \(CO_2\) and \(H_2O\).

Step4: Analyze reaction 4

\(Zn\) replaces \(H\) in \(HCl\).

Step5: Analyze reaction 5

Cations \(Ag^+\) and \(Na^+\) exchange places.

Step6: Analyze reaction 6

\(KClO_3\) breaks down into \(KCl\) and \(O_2\).

Step7: Analyze reaction 7

Cations \(Ba^{2 + }\) and \(H^+\) exchange places.

Step8: Analyze reaction 8

Two substances \(Fe\) and \(O_2\) combine to form \(Fe_2O_3\).

Step9: Analyze reaction 9

Hydrocarbon \(C_2H_6\) reacts with \(O_2\) to form \(CO_2\) and \(H_2O\).

Step10: Analyze reaction 10

\(Cu\) replaces \(Ag\) in \(AgNO_3\).

Step11: Analyze reaction 11

\(CaCO_3\) breaks down into \(CaO\) and \(CO_2\).

Step12: Analyze reaction 12

Cations \(Al^{3 + }\) and \(Ba^{2 + }\) exchange places.

Step13: Analyze reaction 13

Hydrocarbon \(C_6H_{12}O_6\) reacts with \(O_2\) to form \(CO_2\) and \(H_2O\).

Step14: Analyze reaction 14

\(Mg\) replaces \(Fe\) in \(Fe_2O_3\).

Step15: Analyze reaction 15

Two substances \(SO_3\) and \(H_2O\) combine to form \(H_2SO_4\).

Answer:

1. \(S\)
2. \(D\)
3. \(C\)
4. \(SR\)
5. \(DR\)
6. \(D\)
7. \(DR\)
8. \(S\)
9. \(C\)
10. \(SR\)
11. \(D\)
12. \(DR\)
13. \(C\)
14. \(SR\)
15. \(S\)