CHEM-1411 EXAM QUESTIONS WITH
100% CORRECT ANSWERS L LATEST
VERSION 2025/2026.
A student performs an experiment to determine the density of a sugar solution. She obtains the
following results: 4.71 g/mL, 4.73 g/mL, 4.67 g/mL, 4.69 g/mL. If the actual value for the density
of the sugar solution is 4.40 g/mL, which statement below best describes her results?
A) Her results are both precise and accurate.
B) Her results are accurate, but not precise.
C) Her results are precise, but not accurate.
D) Her results are neither precise nor accurate.
E) It isn't possible to determine with the information given. - ANS Her results are precise, but
not accurate.
A substance that can't be chemically broken down into simpler substances is considered
A) An electron.
B) A heterogenous mixture.
C) A compound.
D) An element.
E) A homogenous mixture. - ANS an element
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Choose the heterogeneous mixture from the list below.
A) Gatorade.
B) Black coffee.
C) Chlorine gas.
D) Chicken noodle soup.
E) Carbon (graphite). - ANS chicken noodle soup
Choose the homogeneous mixture from the list below.
A) Trail mix.
B) Blood.
C) Air.
D) Concrete.
E) Soda (pop). - ANS air
Choose the pure substance from the list below.
A) Lemonade.
B) Sugar.
C) Air.
D) Sea water.
E) Milk. - ANS sugar
Determine the density of an object that has a mass of 149.8 g and displaces 12.1 mL of water
when placed in a graduated cylinder.
A) 8.08 g/mL
B) 12.4 g/mL
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
100% CORRECT ANSWERS L LATEST
VERSION 2025/2026.
A student performs an experiment to determine the density of a sugar solution. She obtains the
following results: 4.71 g/mL, 4.73 g/mL, 4.67 g/mL, 4.69 g/mL. If the actual value for the density
of the sugar solution is 4.40 g/mL, which statement below best describes her results?
A) Her results are both precise and accurate.
B) Her results are accurate, but not precise.
C) Her results are precise, but not accurate.
D) Her results are neither precise nor accurate.
E) It isn't possible to determine with the information given. - ANS Her results are precise, but
not accurate.
A substance that can't be chemically broken down into simpler substances is considered
A) An electron.
B) A heterogenous mixture.
C) A compound.
D) An element.
E) A homogenous mixture. - ANS an element
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Choose the heterogeneous mixture from the list below.
A) Gatorade.
B) Black coffee.
C) Chlorine gas.
D) Chicken noodle soup.
E) Carbon (graphite). - ANS chicken noodle soup
Choose the homogeneous mixture from the list below.
A) Trail mix.
B) Blood.
C) Air.
D) Concrete.
E) Soda (pop). - ANS air
Choose the pure substance from the list below.
A) Lemonade.
B) Sugar.
C) Air.
D) Sea water.
E) Milk. - ANS sugar
Determine the density of an object that has a mass of 149.8 g and displaces 12.1 mL of water
when placed in a graduated cylinder.
A) 8.08 g/mL
B) 12.4 g/mL
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
