general reactions-memorise Flashcards
1
Q
substance +oxygen=
A
oxides
2
Q
what is an oxide
A
An oxide is a chemical compound containing at least one oxygen atom and one other element in its chemical formula
3
Q
metal + water=
A
metal hydroxide + hydrogen eg NaOH +H₂
4
Q
metal + acid=
A
salt + hydrogen
5
Q
oxide+acid=
eg MgO + acid
A
salt+water
6
Q
hydroxide+acid=
eg NaOH
A
salt+water
7
Q
carbonate + acid=
eg CuCO₃
A
salt+water+carbon dioxide
8
Q
hydrogencarbonate + acid=
eg KHCO₃
A
salt+water+carbon dioxide
9
Q
ammonia+acid=
eg NH₃+ HCl
A
ammonium salt
eg NH₄Cl
10
Q
metal carbonate heated=
eg CaCO₃
A
metal oxide+ carbon dioxide
eg CaO + CO₂
11
Q
what is a salt
A
combination of a cation and an anion in the right ratio to cancel the charges