Acid + Metal Reaction Flashcards
1
Q
acid + metal reaction word equation?
A
acid + metal -> salt + hydrogen
2
Q
when H is displaced from an acid what compound is formed?
A
a salt
3
Q
hydrochloric acid (HCl) salt formed
A
metal chloride (contains Cl-)
4
Q
sulphuric acid (H2SO4) salt formed
A
metal sulphate (contains SO4 2-)
5
Q
nitric acid (HNO3) salt formed?
A
metal nitrate (contains NO3-)
6
Q
phosphoric acid (H3PO4) salt formed?
A
metal phosphate (contains PO4
3-)
7
Q
why do different acids form different salts?
A
they contain different ions
8
Q
two important observations in an acid + metal reaction?
A
- the metal disappears - this is because it is used up in the reaction
- there is fizzing - this is because a gas (hydrogen) is produced
9
Q
the more reactive a metal is, the ______ it will react with an acid?
A
faster
10
Q
what is the chemical test for hydrogen in a test tube?
A
lit splint -> squeaky pop
- this is because the combustion of the hydrogen causes the test tube to resonate
