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Straighterline Chemistry Final Exam Already Passed 100% Accurate!!
Question : What is the term used for findings that are
summarized based on a pattern or trend?
- Law
- Hypothesis
- Theory
- Phenomena
- Prediction
Correct answer: a. Law
Question : Which of the following is a tentative
explanation for a set of observations?
Select one:
- Law
- Hypothesis
- Theory
- Phenomena
- Prediction
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Correct answer: b. Hypothesis
Question : If a liquid contains 60% sugar and 40% water
throughout its composition then what is it called?
Select one:
- Solute
- Compound
- Homogeneous mixture
- Heterogeneous mixture
- Solvent
Correct answer: c. Homogeneous mixture
Question : Which of the following does not have a
uniform composition throughout?
Select one:
- Element
- Compound
- Homogeneous mixture
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- Heterogeneous mixture
- Solvent
Correct answer: d. Heterogeneous mixture
Question : Which one of these represents a physical
change?
Select one:
- Water, when heated, forms steam.
- Bleach turns hair yellow.
- Sugar, when heated, becomes brown.
- Milk turns sour.
- Apples, when exposed to air, turn brown.
Correct answer: a. Water, when heated, forms steam.
Question : How many micrograms are in 65.3 kg?
Select one:
- 0.653 μg
- 6.53 × 107 μg
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- 6.53 × 104 μg
- 6.53 × 10-8 μg
- 6.53 × 1010 μg
Correct answer: e. 6.53 × 1010 μg
Question : 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:
- 58 cm3
- 1.7 x 105 cm3
- 90 cm3
- 3.4 cm3
- 34 cm3
Correct answer: a. 58 cm3
Question : Given that 1 inch = 2.54 cm, 1.00 cm3 is equal
to