This page requires a JavaScript-enabled browser
Instructions on how to enable your browser are contained in the help file.
Chemistry - 9 Chapter - 2
Chemical combination and Chemical Equations
Test - 10
1.
Molecular formula represent the actual number of atoms present in a Molecule
a) True
b) False
2.
Molecular formula must be used to represent each and every compound.
a) True
b) False
3.
Avogadro was an ________scientist.
a) British
b) Greek.
c) Spanish.
d) Italian
4.
Quantity of a substance containing Avogadro's number of particles is called a____.
a) Mole
b) Gross
c) Dozen
5.
Mole is a number like a dozen or gross.
a) False
b) True
6.
A dozen oranges mean ______oranges.
a) 18
b) 12
c) 10
d) 14
7.
A Mole of a substance means it has ________particles
a) 6.022/10
32
b) 6.022x10
23
c) 6.002x10
23
d) 1000
8.
A Mole of carbon contains 6.022x10
23
_______________ .
a) Molecules and weights 10 g
b) Molecules and weights 10 g
c) None is correct.
d) Atoms and weights 12 g
9.
A Mole of Oxygen contains 6.022x10
23
_________.
a) Atoms and weights 12 g
b) Molecules and weights 32 g
c) Atoms and weights 32 g
d) Molecules and weights 12 g
10.
A Mole of sodium chloride consists of 6.022x10
23
and its mass is 58.58, it is?
a) None is correct.
b) Atom
c) Formula Unit.
d) Molecular mass
This is more feedback!
This is the feedback!
