Introduction to Chemistry
50 Questions
1. The state of matter in which a material has neither a definite shape
nor a definite volume is the state ________.
a) gaseous b) liquid
c) elemental d) solid
2. Which of the following is an example of a chemical change?
a) freezing water to make ice b) boiling water to make steam
c) making salt water from salt and water. d) separating water into hydrogen and oxygen.
3. Which of the following is NOT an indicator that a chemical
change has occurred?
a) color change b) change in mass
c) formation ofprecipitate d) increase or decrease of temperature
4. Kaitlyn is blending together ingredients to create different mixtures.
Which combination of substances would most likely result in a
homogeneous mixture?
a) sand and gravel b) sand and salt
c) gravel and water d) salt and water
5. How many significant figures does 0.3345 have?
a) 2 b) 3
c) 4 d) 5
6. Round off 478.92 to 4 significant figures?
a) 478.9 b) 478
c) 478.0 d) 480
1/10
, 7. How many significant figures does the following number
have: 0.998005
a) 9 b) 10
c) 6 d) 5
8. How many significant figures does the following number
have: 100.00210
a) 7 b) 5
c) 10 d) 8
9. How many significant figures does 1.90 × 10^8 have?
a) 3 b) 4
c) 6 d) 8
10. Round 0.010229 to four sig figs
a) 1022 b) 1023
c) 0.01023 d) 0.01022
11. Round 1047.78 to three sig figs
a) 104 b) 105
c) 1050 d) 1050.00
12. Calculate 5.50 cm + 5.50 cm
a) 11 cm b) 11.0 cm
c) 11.00 cm d) 11.000 cm
13. Calculate 12.34 + 1.234 + 0.1234
a) 13.6974 b) 13.697
c) 13.70 d) 13.7
14. Solve & Round to Correct Sig Figs.
100/2=
a) 50 b) 50.
c) 50.0 d) 50.00
50 Questions
1. The state of matter in which a material has neither a definite shape
nor a definite volume is the state ________.
a) gaseous b) liquid
c) elemental d) solid
2. Which of the following is an example of a chemical change?
a) freezing water to make ice b) boiling water to make steam
c) making salt water from salt and water. d) separating water into hydrogen and oxygen.
3. Which of the following is NOT an indicator that a chemical
change has occurred?
a) color change b) change in mass
c) formation ofprecipitate d) increase or decrease of temperature
4. Kaitlyn is blending together ingredients to create different mixtures.
Which combination of substances would most likely result in a
homogeneous mixture?
a) sand and gravel b) sand and salt
c) gravel and water d) salt and water
5. How many significant figures does 0.3345 have?
a) 2 b) 3
c) 4 d) 5
6. Round off 478.92 to 4 significant figures?
a) 478.9 b) 478
c) 478.0 d) 480
1/10
, 7. How many significant figures does the following number
have: 0.998005
a) 9 b) 10
c) 6 d) 5
8. How many significant figures does the following number
have: 100.00210
a) 7 b) 5
c) 10 d) 8
9. How many significant figures does 1.90 × 10^8 have?
a) 3 b) 4
c) 6 d) 8
10. Round 0.010229 to four sig figs
a) 1022 b) 1023
c) 0.01023 d) 0.01022
11. Round 1047.78 to three sig figs
a) 104 b) 105
c) 1050 d) 1050.00
12. Calculate 5.50 cm + 5.50 cm
a) 11 cm b) 11.0 cm
c) 11.00 cm d) 11.000 cm
13. Calculate 12.34 + 1.234 + 0.1234
a) 13.6974 b) 13.697
c) 13.70 d) 13.7
14. Solve & Round to Correct Sig Figs.
100/2=
a) 50 b) 50.
c) 50.0 d) 50.00
