Metals And Their Uses Flashcards
1
Q
Are metals compounds or elements?
A
Elements
2
Q
How can you tell the difference between metals and non metals?
A
Physical properties
3
Q
What are catalysts?
A
Substances that speed up chemical reactions without changing themselves
4
Q
What is corrosion?
A
Any reaction with oxygen at the surface of a metal
5
Q
Examples of metals that are too reactive
A
Lithium, sodium, potassium, calcium
6
Q
What happens when metals react with water?
A
They form hydrogen gas and a metal hydroxide
7
Q
What can be used to show the reactivity in metals?
A
Reactivity series
8
Q
What are alloys?
A
Mixtures of metals
