Reactions

Question 0

Decomposition

Answer 0

One substance breaks down to form two or more simpler substances; the opposite of synthesis

   AB=A+B

Question 1

Synthesis

Answer 1

Is the combination of two or more substances to form a compound; the opposite of decomposition

   A+B=AB

Question 2

Dehydration

Answer 2

Is a special type of decomposition that involves the removal of H2O from hydrated salts

  AB•xH2O=AB+H2O

Question 3

Combustion

Answer 3

A chemical reaction that produces large amounts of heat and light; it involves the reaction of a substance with oxygen

    A+O2=A?O?

Question 4

Combustion of hydrocarbons

Answer 4

When compounds containing hydrogen and carbon react with oxygen to produce Co2+H2O

C?Hy+O2=Co2+H2O

Question 5

Single replacement

Answer 5

Involves the replacement of one element in a compound with another
(Metal replaces metal)
A+BC=B+AC

Question 6

Non-metal replaces a non-metal

Answer 6

Not all single replacement reactions can occur; the element doing the replacing must have a higher activity than the element it is trying to replace
D+BC=C+BD

Question 7

Double replacement

Answer 7

Occurs when elements in reacting compounds exchange places

AB+CD=CB+AD

Question 8

Neutralization

Answer 8

An acid and base react to form a salt and water

HA+BOH=BA+H2O