AnswersSY2026-27 - 2003340 Chemistry 1 Sem 2 CRWriting and Balancing Chemical Equations

Writing and Balancing Chemical Equations — Unit test Answers

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Which would be the best way to represent the concentration of a 1.75 M K2CrO4 solution?

A
1.75%
B
[K2CrO4] = 1.75 M
C
(K2CrO4)
D
K2CrO4, [M]
22
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Josh prepares a solution by mixing sodium nitrate and water. To calculate the molarity of the solution, Josh should calculate the moles of which substance, and why?

A
sodium nitrate, because it is the solvent
B
sodium nitrate, because it is the solute
C
water, because it is the solvent
D
water, because it is the solute
23

Which refers to a mixture that contains more than one phase in which the characteristics of the particles vary throughout the mixture?

A
compound
B
element
C
heterogeneous
D
homogeneous
24

Under which conditions would the solubility of a gas be greatest?

A
high pressure and high temperature
B
high pressure and low temperature
C
low pressure and high temperature
D
low pressure and low temperature
25

Which best explains why blood is considered to be a suspension?

A
It has nutrients that cannot be dissolved.
B
It contains particles that can settle out.
C
It has nutrients that are dissolved in its liquid portion.
D
It contains particles that mix on a molecular level.

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