Types of Chemical Reactions

Question 1

COMBUSTION REACTIONS (4)

Answer 1

A + O2 🡪 OXIDE (+ OTHER PRODUCTS)

1. complete combustion
2. incomplete combustion
3. cellular respiration

Question 2

COMBUSTION REACTIONS

Complete combustion

Answer 2

hydrocarbon + oxygen 🡪 carbon dioxide + water

CxHy + O2(g) 🡪 CO2(g) + H2O(g)

Question 3

COMBUSTION REACTIONS

Incomplete combustion

Answer 3

hydrocarbon + oxygen 🡪 carbon dioxide + water + carbon monoxide + carbon+…

CxHy + O2(g) 🡪 CO2(g) + H2O(g) + CO(g) + C(s) +?

Question 4

COMBUSTION REACTIONS

Cellular Respiration

Answer 4

glucose + oxygen 🡪 carbon dioxide + water

C6H12O6(s) + 6 O2(g) 🡪6 CO2(g) + 6 H2O(g)

Question 5

SYNTHESIS REACTIONS (4)

Answer 5

A + B 🡪 AB

1. element + element 🡪 binary compound
2. element + compound 🡪 new compound
3. compound + compound 🡪 new compound

Question 6

SYNTHESIS REACTIONS

Element + element 🡪 binary compound

Answer 6

metal + non-metal 🡪 ionic compound
Mg + Cl2 🡪 MgCl2
ii) non-metal + non-metal 🡪 molecular compound
5P + 2Cl2 🡪 P5Cl4

Question 7

SYNTHESIS REACTIONS

element + compound 🡪 new compound

Answer 7

2SO2(g) + O2(g) 🡪 2SO3(g)

Question 8

SYNTHESIS REACTIONS

compound + compound 🡪 new compound

Answer 8

non-metal oxide + water 🡪 acid
CO2(g) + H2O(l) 🡪 H2CO3(aq)
ii) metal oxide + water 🡪 base
Na2O(s) + H2O(l) 🡪 2NaOH(aq)

Question 9

DECOMPOSITION REACTIONS (5)

Answer 9

AB 🡪 A + B
binary compound 🡪 element + element
metal nitrate 🡪 metal nitrite + oxygen gas
metal carbonate 🡪 metal oxide + carbon dioxide
metal hydroxide 🡪 metal oxide + water

Question 10

SINGLE DISPLACEMENT

Answer 10

Z + AB 🡪 ZB + A
Y + AB 🡪 AY + B
metal displaces metal in ionic compound
non-metal displaces non-metal in ionic compound
metal displaces hydrogen in acid or water

Question 11

DOUBLE DISPLACEMENT (4)

Answer 11

YZ + AB 🡪 YB + AZ
reaction that forms a solid [precipitate]
reaction that forms water [neutralization] (acid+base)
reaction that forms a gas (DD+decomposition)