Definitions Flashcards
1
Q
What is a chemical formula
A
An expression that shows the number of moles of each element combined to form one mole of a compound
2
Q
What is a molecular formula
A
The expression of the number of atoms in one molecule of a compound.
3
Q
Mole
A
The amount of a substance that contains the same number of particles as there atoms in 12g of carbon -12
4
Q
Ions
A
Electrically charged particles formed from atoms
5
Q
What is an empirical formula
A
Shows the simplest ratio of the atom present in a compound
6
Q
What does an Antiacid do
A
Neutralizes an acid
7
Q
What is an acid
A
A substance that produce hydrogen ion when dissolved in water.
8
Q
Strong acid
A
Completely ionise in water
9
Q
Weak acid
A
Doesn’t completely ionise in water
