NEW
Font size
WorksheetsUnit 6 Chem Studies Review
Total questions: 27
Worksheet time: 14mins
N2O is _____ because _____________
nonpolar; it has lone pairs around central atom
polar; it has lone pairs around central atom
nonpolar; it does not have lone pairs around central atom
polar; it does not have lone pairs around central atom
CH2O is _______ because...
Polar; has lone pairs around central atom
Nonpolar; does not have lone pairs around central atom
Polar; it does not have lone pairs around central atom
Unable to be determined
SiH4 is ____ because...
nonpolar; Hydrogen has to stay "happy" with only two electrons
nonpolar; There are no double or triple bonds in the lewis structure
nonpolar; The central atom has no lone pairs
polar; There are only eight valance electrons
N2 is ______ and have ____ bond(s).
polar; double
nonpolar; triple
polar; two single
nonpolar; three double
H2O is ______ and has ______ bond(s).
polar; single
nonpolar; single
nonpolar since hydrogen needs to be happy
polar; double
Calculate how many valance electrons NCl3 has.
26
12
105
36
Calculate how many valance electrons O3 has.
18
6
3
9
Calculate how many valance electrons CO2 have.
16
12
4
8
Polar molecules usually stick together.
true
false
Polar usually mixes with polar molecules and nonpolar usually mixes with nonpolar molecules.
true
false
Polar and nonpolar molecules usually mix with each other.
true
false
Kennedy King has designed a block during architecture class. The height is 7.1 cm3, the width is 2.4 cm3, and the length is 8.4 cm3. Calculate the volume.
143.14 cm3
202.22 cm3
42.94 cm3
73.24cm3
If the mass of Kennedy's block is 133.2 grams, what is the density of the block? The volume is 143.14 cm3.
0.93 g/cm3
1.07 g/cm3
1.24 g/cm3
1.43 g/cm3
Will Kennedy's block with 0.93 g/cm3 density be able to float or sink in water?
It will float bc it is less than water's density (1.00 cm3)
It will sink bc it is less than water's density (1.00 cm3)
It will float bc it is more than water's density (1.00 cm3)
It will sink bc it is more than water's density (1.00 cm3)
Which box has the highest density? (be careful!)
A
B
C
D
Nick Poulous has found a seashell filled with water at the beach. He found out the mass of the seashell is 25.7 grams, and the volume of the seashell is 42.4 mL, with water. She dumped the water out and now the seashell's volume is 28.6mL. How much volume is the water?
13.8 mL
2.9 mL
4.6 mL
16.7 mL
Calculate the density of Nick's seashell. The mass is 25.7g and the volume is 28.6g.
0.90 g/mL
0.57 g/mL
1.65 g/mL
0.61 g/mL
Emma Harman has olive oil which has a density of 0.80 g/mL. She shares half of it with her friend Chloe Stannard so they can cook with it. How much density did Chloe get from Emma?
0.40 g/mL
The oil has the same density (0.80 g/mL)
1.60 g/mL
0.50 g/mL
Conor Darcy found an unknown metal which mass is 334.56 g and volume is 17.3 cm. Find the density and determine which object is this.
lead (11.34)
silver (10.5)
gold (19.3)
aluminum (2.70)
Faith Mackimm has a necklace and wanted to determine if it was made of aluminum. She found out that the mass of her necklace is 45.6 g. She put her necklace in the water with 15mL and she took a new volume reading of 31.9 mL. Is her necklace really made of aluminum? The density of aluminum is 2.7 g/ml. (make sure you calculate first)
yes
no
Where would aluminum go in the column?
Between copper wire and corn syrup
Between plastic and water
Between water and tar ball
Between rubber washer and glycerin
Which substance would have the highest mass?
wood
plastic
water
mercury
Which substance would have the lowest mass?
water
wood
mercury
copper wire or plastic
Alexis Mikuta's backpack has a mass of 68.5 grams and has a density of 2.44 g/cm. What is the volume of Alexis's backpack?
28.07 g/cm3
34.31 g/cm3
64.24 g/cm3
30.32 g/cm3
Edward Yoo's laptop has a volume of 77.4 cm3 and a density of 3.22 g/cm. What is the mass of Edward's laptop?
249.23 g
214.22 g
24.04 g
747.69 g
Heather Sundstrom's soccer ball has a density of 3.55 cm3 and a volume of 23.2 g/cm3. Calculate the mass of Heather's soccer ball.
292.38 g
0.15 g
82.36 g
6.54 g
Will Collins's phone has a mass of 45.8 grams and a density of 0.98 g/cm3. Calculate the volume of Liv's phone.
46.73 cm3
0.02 cm3
9.16 cm3
22.61 cm3
