Straighterline Chemistry Final- deck 1 With
Complete Solution 100% Verified
What is the term used for findings that are summarized based on a pattern or trend?
r r r r r r r r r r r r r r r
a. Law
r r
b. Hypothesis
r
c. Theory
r
d. Phenomena
r
e. Prediction - Correct Answer - a. Law
r r r rr r r r
Which of the following is a tentative explanation for a set of observations?
r r r r r r r r r r r r
Select one: r
a. Law
r
b. Hypothesis
r r
c. Theory
r
d. Phenomena
r
e. Prediction - Correct Answer - b. Hypothesis
r r r rr r r r
If a liquid contains 60% sugar and 40% water throughout its composition then what is it called?
r r r r r r r r r r r r r r r r
Select one: r
a. Solute
r
b. Compound
r
c. Homogeneous mixture
r r r
d. Heterogeneous mixture
r r
, e. Solvent - Correct Answer - c. Homogeneous mixture
r r r rr r r r r
Which of the following does not have a uniform composition throughout?
r r r r r r r r r r
Select one:
r
a. Element
r
b. Compound
r
c. Homogeneous mixture
r r
d. Heterogeneous mixture
r r r
e. Solvent - Correct Answer - d. Heterogeneous mixture
r r r rr r r r r
Which one of these represents a physical change?
r r r r r r r
Select one:
r
a. Water, when heated, forms steam.
r r r r r r
b. Bleach turns hair yellow.
r r r r
c. Sugar, when heated, becomes brown.
r r r r r
d. Milk turns sour.
r r r
e. Apples, when exposed to air, turn brown. - Correct Answer - a. Water, when heated, forms steam.
r r r r r r r r r rr r r r r r r r
What terms defines a mass which is exactly equal to 1/12 the mass of one carbon-12 atom?
r r r r r r r r r r r r r r r r
Select one:
r
a. Isotope number
r r
b. Mass number
r r
c. Mass-to-charge ratio
r r
d. Atomic number
r r
e. Atomic mass unit - Correct Answer - e. Atomic mass unit
r r r r r rr r r r r r
C(graphite) and C(diamond) are examples of: r r r r r
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