WorksheetsReview Day 1
Total questions: 13
Worksheet time: 40mins
How many molecules are in 2.75 moles of water
6.55
4.568 x 10-24
49.541
1.66 x 1023
How many moles are present in a 10 gram sample of sodium?
2.30
1.38 x 1023
0.435
2.62 x 1024
A sample of bromine contains 2.88 x 1023 atoms. This number of atoms is equivalent to how many moles of bromine atoms
2.77 x 10-23
0.478
2.09
4.78 x 10-24
5 moles of scandium have a mass of about?
21
105
225
45
Empirical formula for benzene (C6 H6)
CH
CH2
CH3
C2H2
(C6 H12 O6) is an example of
an inorganic compound
empirical formula
single element
molecular formula
__ Al + __ FeO → Al2O2 + __ Fe
1, 1, 2
2,1,2
2, 2, 2
2,4,2
Which of the following has the shortest wavelength?
microwaves
UV rays
Infrared
the color blue
Which of the following has the least amount of energy?
UV rays
The color yellow
infrared
Gamma rays
