Writing and Balancing Chemical Equations — Unit test Answers
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What is the temperature of 0.750 mol of a gas stored in a 6,850 mL cylinder at 2.21 atm?Use and .
A
2.95 KB
5.24 KC
138 KD
246 K22
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What happens when a solid is dissolved into a liquid?
A
Solid particles float toward the surface layer of liquid particles.B
Solid particles sink down toward the bottom layer of liquid particles.C
Solid particles become evenly dispersed among liquid particles.D
Solid particles become suspended in the middle of liquid particles.23
What happens when the kinetic energy of molecules increases so much that electrons are released by the atoms, creating a swirling gas of positive ions and negative electrons?
A
Matter changes to a solid state.B
Matter changes to a liquid state.C
Matter changes to a plasma state.D
Matter changes to a gaseous state.24
Which term best describes the substances that cause oil and water molecules in salad dressing to interact and mix?
A
surfactantsB
miscible liquidsC
immiscible liquidsD
compressed molecules25
What is produced on the top of a pool of water by the mutual attraction between water molecules?
A
surfactantB
surface tensionC
a much smaller volumeD
a much higher densityDid you find these answers helpful?
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