Elements, Compounds and Reactions Flashcards
1
Q
Test for hydrogen gas
A
It burns with a squeaky pop
2
Q
Test for Carbon Dioxide
A
It turns limewater cloudy or milky.
3
Q
Substances that react together are called ____A____
and they come together to form the _______B_______
A
A = Reactants
B = Product
4
Q
Physical properties of a substance
A
Colour
State of Matter
How readily it reacts with water, acids and metals
How heavy or light it is
5
Q
Chemical properties of a substance
A
How alkaline or acidic it is
How readily it reacts with water, acids and metals
How readily it reacts
6
Q
How much of the air is made up of nitrogen
A
78%
7
Q
How much of the air is made up of oxygen
A
21%
