NEW
Font size
WorksheetsBab 3
Total questions: 10
Worksheet time: 8mins
Acetone, C3H6O, is the main component of fingernail polish remover. What is the molar mass of acetone ?
29 g/mol
48 g/mol
58 g/mol
34 g/mol
Chalk is mostly made of calcium carbonate, CaCO3. If it took 48.6 g of chalk to write your name on the sidewalk, how many moles of calcium carbonate does your name contain?
0.486 mol
1.40 mol
0.714 mol
2.06 mol
Identify the number of Chlorine atoms in 65.8 g CaCl2.
7.14 x 1023 atoms
1.22 x 1023 atoms
8.71 x 1023 atoms
3.57 x 1023 atoms
An empirical formula is defined as _______?
The simplest whole number ratio of atoms in a formula.
The formula showing the ratio of atoms in a formula.
The actual whole number ratio of atoms in a formula.
The molecular formula for a carbon and hydrogen compound is C8H18. What is the empirical formula?
C8H18
C18H8
C9H4
C4H9
Which symbol shows a chemical reaction has occured?
A
B
C
D
In a word equation the REACTANTS
Are written on the right hand side of the arrow
Are always the same
Are produced in a chemical reaction
Are written on the left hand side of the arrow
Identify the product(s) in this word equation
Sodium and sodium chloride
Sodium
Sodium and Chlorine
Sodium chloride
How many Aluminum are in Al2O3?
3
5
2
1
Is this equation balanced?
Yes
No
