Atoms which show the same properties are called as
Molecules
Mixtures
Elements
Compounds
Find the number of atoms in C12H22O11
12
22
11
45
Example for pure substance is
Hydrogen
Water
Sugar
Ammonia
Balance the equation and find the value of a, b, c in the following equation:a N2 + b H2 → c NH3
1, 2, 3
1, 3, 2
3, 2, 1
3, 1, 2
The total number of atoms present in 7NH3 molecule is
7
10
21
28
How many oxygen atoms are present in 2Na2SO4.
4
2
6
8
Which one is a polyatomic molecule?
Helium
Oxygen
Sulphur
Argon
Phosphorus is ___ molecules.
mono atomic
diatomic
triatomic
polyatomic
In the reaction, NaOH + H2 SO4 → Na2SO4 +H2O the number of atoms of Hydrogen in reactant side are (after balancing the equation).
1
3
