Straighterline Chemistry Final NEWEST
Exam || 2026 (Actual Exam) Questions
with verified Answers | FREQUENTLY
MOST TESTED QUESTIONS AND
VERIFIED SOLUTIONS @ 2026
What is the term used for findings that are summarized based on a pattern or
trend?
a. Law
b. Hypothesis
c. Theory
d. Phenomena
e. Prediction - ANSWER-a. Law
Which of the following is a tentative explanation for a set of observations?
Select one:
a. Law
b. Hypothesis
c. Theory
d. Phenomena
e. Prediction - ANSWER-b. Hypothesis
,If a liquid contains 60% sugar and 40% water throughout its composition then
what is it called?
Select one:
a. Solute
b. Compound
c. Homogeneous mixture
d. Heterogeneous mixture
e. Solvent - ANSWER-c. Homogeneous mixture
Which of the following does not have a uniform composition throughout?
Select one:
a. Element
b. Compound
c. Homogeneous mixture
d. Heterogeneous mixture
e. Solvent - ANSWER-d. Heterogeneous mixture
Which one of these represents a physical change?
Select one:
a. Water, when heated, forms steam.
b. Bleach turns hair yellow.
c. Sugar, when heated, becomes brown.
, d. Milk turns sour.
e. Apples, when exposed to air, turn brown. - ANSWER-a. Water, when heated,
forms steam.
What terms defines a mass which is exactly equal to 1/12 the mass of one carbon-
12 atom?
Select one:
a. Isotope number
b. Mass number
c. Mass-to-charge ratio
d. Atomic number
e. Atomic mass unit - ANSWER-e. Atomic mass unit
C(graphite) and C(diamond) are examples of:
Select one:
a. isotopes of carbon.
b. allotropes of carbon.
c. the law of definite proportions.
d. different carbon ions. - ANSWER-b. allotropes of carbon.
The formula for sodium sulfide is
Select one:
Exam || 2026 (Actual Exam) Questions
with verified Answers | FREQUENTLY
MOST TESTED QUESTIONS AND
VERIFIED SOLUTIONS @ 2026
What is the term used for findings that are summarized based on a pattern or
trend?
a. Law
b. Hypothesis
c. Theory
d. Phenomena
e. Prediction - ANSWER-a. Law
Which of the following is a tentative explanation for a set of observations?
Select one:
a. Law
b. Hypothesis
c. Theory
d. Phenomena
e. Prediction - ANSWER-b. Hypothesis
,If a liquid contains 60% sugar and 40% water throughout its composition then
what is it called?
Select one:
a. Solute
b. Compound
c. Homogeneous mixture
d. Heterogeneous mixture
e. Solvent - ANSWER-c. Homogeneous mixture
Which of the following does not have a uniform composition throughout?
Select one:
a. Element
b. Compound
c. Homogeneous mixture
d. Heterogeneous mixture
e. Solvent - ANSWER-d. Heterogeneous mixture
Which one of these represents a physical change?
Select one:
a. Water, when heated, forms steam.
b. Bleach turns hair yellow.
c. Sugar, when heated, becomes brown.
, d. Milk turns sour.
e. Apples, when exposed to air, turn brown. - ANSWER-a. Water, when heated,
forms steam.
What terms defines a mass which is exactly equal to 1/12 the mass of one carbon-
12 atom?
Select one:
a. Isotope number
b. Mass number
c. Mass-to-charge ratio
d. Atomic number
e. Atomic mass unit - ANSWER-e. Atomic mass unit
C(graphite) and C(diamond) are examples of:
Select one:
a. isotopes of carbon.
b. allotropes of carbon.
c. the law of definite proportions.
d. different carbon ions. - ANSWER-b. allotropes of carbon.
The formula for sodium sulfide is
Select one:
