Chemistry Flashcards
1
Q
Corrosion
A
Is an undesirable (unwanted) process whereby a metal change
2
Q
Rusting
A
Is the corrosion of fe (iron)
3
Q
When metals react with an acid
A
Hydrogen gas is given off
4
Q
Zinc reacts with hydrochloride acid
A
To form zinc chlorides hydrogen
5
Q
Metals
A
Are usually hard,dense,shiny and have high melting point
6
Q
Malleable
A
Means can be hammed into different shapes
7
Q
Ductile
A
Means can be stretched into wires
8
Q
Unreactive metals
A
(Gold,silver) can be found in nature
9
Q
Rusting needs
A
Water and oxygen
10
Q
Corrosion
A
Paint,
11
Q
Galvanising
A
Is putting a layer of zinc on iron to prevent rushing
12
Q
Bronze
A
Copper and tin
13
Q
Brass
A
Copper and zinc
14
Q
Steel
A
Iron and carbon
15
Q
Solder
A
Lead and tin
