Types of Chemical Reactions

Question 1

Combustion of Element

Answer 1

reaction of substance with oxygen gas (O2), produces heat/light and oxides. Formula :A+O2 ->AO (element + oxygen -> element oxide

Question 2

Combustion of Hydrocarbon

Answer 2

Reaction of hydrocarbon with O2, produces CO2 and H2O. Formula: CxHy + O2 -> CO2 + H2O

Question 3

Hazards of CO

Answer 3

By-product of incomplete combustion, colourless, odourless, tasteless gas poisonous to body. attaches to hemoglobin and prevents oxygen from binding

Question 4

Synthesis

Answer 4

Molecules/atoms combine to form larger molecule. Formula: A + B -> AB

Question 5

Decomposition

Answer 5

Molecule broken down into smaller molecules/atoms. Formula: AB -> A + B

Question 6

Single Displacement

Answer 6

Reaction of element with compound, metal displaces metal, non-metal displaces non-metal. Formula: A+BC -> B+AC (not every SD rxn will occur)

Question 7

Activity Series

Answer 7

Metal displaces metal if it is above it, non-metal displaces non-metal if it is above it

Question 8

Double Displacement

Answer 8

Reaction of two compounds, metals switch places. Formula: AB + CD -> AD + CB

Question 9

Solubility Rules

Answer 9

i=(s), ss=(s), s=(aq)

Question 10

Neutralization

Answer 10

DD that involves reaction of acid with base produces salt (ionic compound) and H2O.Formula:HA+BOH -> BA+H2O