CHEM 101-Test 1: Chapters 1, 2 & 3-Ivy
Tech Questions and Answers 2026
Updated.
A chemical change:
A) Occurs when methane gas is burned.
B) Occurs when paper is shredded.
C) Occurs when water is vaporized.
D) Occurs when slat is dissolved in water.
E) Occurs when propane is burned for heat. - Answer A) Occurs when methane gas is burned.
A physical change:
A) Occurs when iron rusts.
B) Occurs when sugar is heated into caramel.
C) Occurs when glucose is converted into energy within your cells.
D) Occurs when water is evaporated.
E) Occurs when propane is burned for heat. - Answer D) Occurs when water is evaporated.
Which of the following is an example of a chemical change?
A) Coffee brewing
B) Water boiling
C) Leaves turning color in the fall
D) Salt dissolves in water
E) None of the above are chemical changes - Answer C) Leaves turning color in the fall
Choose the homogeneous mixture from the list below.
A) Cola
B) Mud
C) Ice water
, D) Salad Dressing
E) Salsa - Answer A) Cola
Choose the heterogeneous mixture from the list below.
A) Sports drink
B) Chlorine gas
C) Black coffee
D) Chicken noodle soup
E) Caron (graphite) - Answer D) Chicken noodle soup
How many significant figures are in the measurement, 20.300m?
A) 3
B) 4
C) 5
D) 1
E) 2 - Answer C)
How many significant figures are in the measurement, 0.0005890 g?
A) 4
B) 5
C) 6
D) 7
E) 8 - Answer A) 4
What answer should be reported, with the correct number of significant figures, for the
following calculation?
(433.621 - 333.9) x 11.900
A) 1.19 x 10^3
B) 1.187 x 10^3
C) 1.1868 x 10^3
D) 1.18680 x 10^3
E) 1.186799 x 10^3 - Answer A) 1.19 x 10^3
Tech Questions and Answers 2026
Updated.
A chemical change:
A) Occurs when methane gas is burned.
B) Occurs when paper is shredded.
C) Occurs when water is vaporized.
D) Occurs when slat is dissolved in water.
E) Occurs when propane is burned for heat. - Answer A) Occurs when methane gas is burned.
A physical change:
A) Occurs when iron rusts.
B) Occurs when sugar is heated into caramel.
C) Occurs when glucose is converted into energy within your cells.
D) Occurs when water is evaporated.
E) Occurs when propane is burned for heat. - Answer D) Occurs when water is evaporated.
Which of the following is an example of a chemical change?
A) Coffee brewing
B) Water boiling
C) Leaves turning color in the fall
D) Salt dissolves in water
E) None of the above are chemical changes - Answer C) Leaves turning color in the fall
Choose the homogeneous mixture from the list below.
A) Cola
B) Mud
C) Ice water
, D) Salad Dressing
E) Salsa - Answer A) Cola
Choose the heterogeneous mixture from the list below.
A) Sports drink
B) Chlorine gas
C) Black coffee
D) Chicken noodle soup
E) Caron (graphite) - Answer D) Chicken noodle soup
How many significant figures are in the measurement, 20.300m?
A) 3
B) 4
C) 5
D) 1
E) 2 - Answer C)
How many significant figures are in the measurement, 0.0005890 g?
A) 4
B) 5
C) 6
D) 7
E) 8 - Answer A) 4
What answer should be reported, with the correct number of significant figures, for the
following calculation?
(433.621 - 333.9) x 11.900
A) 1.19 x 10^3
B) 1.187 x 10^3
C) 1.1868 x 10^3
D) 1.18680 x 10^3
E) 1.186799 x 10^3 - Answer A) 1.19 x 10^3
