WorksheetsChemistry Fall Final Review
Total questions: 20
Worksheet time: 12mins
Name
Class
Date
1.
1. The number of significant figures in the measurement 170.040 km is ___.
a)
Three
b)
Four
c)
Five
d)
Six
2.
2. Which of these recorded observations is qualitative, rather than quantitative?
a)
a. A chemical reaction is complete in 2.3 s.
b)
a. The solid has a mass of 23.4 g.
c)
The compound melts at 87.5°C.
d)
Iron is denser than aluminum.
3.
3. A sample of bismuth has a mass of 343g and a volume of 35.0cm3. What is the density of bismuth?
a)
a. 0.102 g/cm3
b)
b. 9.80 g/cm3
c)
c. 378 g/cm3
d)
d. 1.20 x 104 g/cm3
4.
4. How many meters are there in 1,865 cm?
a)
0.1865 m
b)
1.865 m
c)
18.65 m
d)
186.5 m
5.
5. A student determined the density of aluminum by averaging the results of three density calculations. Each value was different, but the average was equal to the accepted value for aluminum’s density. The results of this investigation are best described as ______.
a)
a. Accurate, but not precise.
b)
a. Precise, but not accurate.
c)
a. Both precise and accurate.
d)
a. Neither precise nor accurate.
6.
6. Expressed in scientific notation, 0.0930 m is ___.
a)
93 x 103 m.
b)
9.3 x 10-3m.
c)
9.30 x 10-2 m.
d)
9.30 x 104 m.
7.
7. Convert the following measurement: 5.4 L to mL
a)
54. mL
b)
5400. mL
c)
540. mL
d)
54000. mL
8.
8. Which are the sublevels in an energy level of n = 3?
a)
s, p, and f
b)
s, d, and f
c)
s, p, and d
d)
p, d and f
9.
9. What electron configuration rule states: All orbitals of equal energy are occupied by one electron before any single orbital is occupied by a second electron.
a)
Pauli Exclusion Principle
b)
Hund's Rule
c)
Aufbau Principle
d)
Bohr Model of the the atom
10.
10. What electron configuration rule states: No two electrons in the same atom can have the same four quantum numbers.
a)
Pauli Exclusion Principle
b)
Hund's Rule
c)
Aufbau Principle
d)
Bohr model of the atom
11.
11. What electron configuration rule states: An electron occupies the lowest energy orbital that can receive it.
a)
Pauli Exclusion Principle
b)
Hund's Rule
c)
Aufbau Principle
12.
12. Which element does the following configuration represent? 1s2,2s2,2p6,3s2,3p5
a)
Phosphorus
b)
Chlorine
c)
Silicon
d)
Argon
13.
13. What is the correct electron configuration for Calcium?
a)
a. 1s2,2s2,2p6,3s2,3p6,4s1
b)
a. 1s2,2s2,2p6,3s2,3p6,4s2
c)
a. 1s2,2s2,2p6,3s2,3p5,4s2
d)
1s2,2s2,2p6,3s3,3p5,4s1
14.
14. What is the correct formula for copper(I) cyanide?
a)
CuCy
b)
CuCy2
c)
CuCN
d)
Cu2CN
15.
15. What is the correct formula for the compound made of magnesium and nitrogen?
a)
Mg2N3
b)
Mg3N2
c)
MgN2
d)
MgN
16.
16. Which equation below violates the law of conservation of mass?
a)
2H2 + O2 --> 2 H2O
b)
KCl + Br --> KBr + Cl2
c)
a. 2 Fe2O3 + 3C --> 4Fe + 3CO2
d)
a. Na 2 CO3 + 2HCl --> 2NaCl + H2 O + CO2
17.
17. Which coefficients correctly balance the formula equation below? KClO3 (s)---> KCl(s) + O2(g)
a)
1,1,1
b)
1,1,3
c)
2,2,3
d)
2,1,1
18.
18. Choose the correct coefficients to balance the following equation: PbO2 ---> PbO + O2
a)
1,1,2
b)
2,2,1
c)
2,2,2
d)
1,2,1
19.
19. Choose the correct coefficients to balance the following equation: Zn(OH)2 +HC2H3O2---> Zn(C2H3O2)2 + H 2O
a)
1,2,1,2
b)
1,1,1,2
c)
2,2,1,1
d)
2,1,2,1
20.
20. Choose the correct coefficients to balance the following equation: Cl2 + KBr ---> KCl + Br2
a)
2,1,2,1
b)
1,2,2,1
c)
1,2,1,1
d)
1,1,2,2
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