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Straighterline Chemistry Final Questions and Correct Answers the Latest Update and Recommended Version
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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 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...

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  • October 24, 2024
  • 101
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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Straighterline Chemistry Final
Questions and Correct Answers the
Latest Update and Recommended
Version
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

✓ 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

✓ b. Hypothesis




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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

✓ 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

✓ d. Heterogeneous mixture


Which one of these represents a physical change?

Select one:


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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.

✓ a. Water, when heated, forms steam.


How many micrograms are in 65.3 kg?

Select one:

a. 0.653 μg


b. 6.53 × 107 μg


c. 6.53 × 104 μg


d. 6.53 × 10-8 μg


e. 6.53 × 1010 μg


✓ e. 6.53 × 1010 μg


A smart phone has dimensions of 4.9 inches (height), 2.3 inches (width) and 8.0 millimeters

(depth). What is the volume of the smart phone in cubic centimeters? (1 in = 2.54 cm)

Select one:

a. 58 cm3

b. 1.7 x 105 cm3

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c. 90 cm3

d. 3.4 cm3

e. 34 cm3

✓ a. 58 cm3


Given that 1 inch = 2.54 cm, 1.00 cm3 is equal to

Select one:

a. 16.4 in3

b. 6.45 in3

c. 0.394 in3

d. 0.155 in3

e. 0.0610 in3

✓ e. 0.0610 in3


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

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