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Straighterline Chemistry Final Exam 100% Correctly Answered | Graded A+ Already
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Straighterline Chemistry Final Exam 100% Correctly Answered | Graded A+ Already 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 se...

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  • June 8, 2024
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  • 2023/2024
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Straighterline Chemistry Final Exam 100% Correctly
Answered | Graded A+ Already

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

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:

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


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


e. Atomic mass unit - - e. Atomic mass unit


How many neutrons are there in an atom of lead whose mass number is 208?




Select one:


a. 82


b. 126


c. 208


d. 290


e. none of them - - b. 126


Which of these elements is chemically similar to magnesium?




Select one:


a. Sulfur


b. Calcium


c. Iron

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