Unit 5, Chemical Reactions Flashcards
1
Q
How do you know a chemical reaction has taken place>
A
Energy is produced (ie, batteries, fire.), colour change, odour, temperature change and precipitate
2
Q
What are the 5 types of chemical reactions?
A
Synthesis, Decomposition, Single Replacement, Double Displacement and Combustions
3
Q
Synthesis
A
A+B –> AB
4
Q
Decomposition
A
AB –> A+B
5
Q
Single Replacement
A
AB + C –> B+AC
6
Q
Double displacement
A
AB + CD –> AC + BD
7
Q
Combustion
A
Substance + oxygen
8
Q
Al(s)+Fe(NO3)3 –> Fe(s) + Al(NO3)3(aq) = ?
A
single replacement
9
Q
2 Na (s) + Br2 (l) → 2 NaBr (s)
A
single replacement
10
Q
Sulfur burns to form sulfur trioxide gas.
A
Combustion
11
Q
A
