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Emerson Wu
ChemistryChemistry
According to Boyle's law, how would you reduce the volume of a gas?

a) by decreasing its temperature

b) by decreasing its pressure

c) by increasing its pressure
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Beckett
ChemistryChemistry
The metric system is only used in France

True

or

False
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Hillary Oconnell
ChemistryChemistry
Increasing the temperature of a swimming pool causes the water molecules to
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Hartman
ChemistryChemistry
An atom that undergoes radioactive decay and has a large nucleus most likely has:

A) a neutron number higher than the proton number.

B) a proton number higher than the neutron number.

C) an electron number higher than the proton number.

D) a proton number higher than the electron number.
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Isiah Meadows
ChemistryChemistry
You are given mixture made of 290 grams of water and 14.2 grams of salt. Determine the % by mass of salt in the salt solution.
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Jazlyn Conway
ChemistryChemistry
Given a solution with a hydroxide ion concentration oh = 2.73 * 10-5 what is the ph
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Aubrey Hubbard
ChemistryChemistry
What is the most important chemical reaction of the alkanes?

substitution

combustion

displacement

hydrogenation
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Claire
ChemistryChemistry
When the oxidation number of an element decreases over the course of a reaction, that element has beenWhich of the following chemical reactions is an oxidation-reduction reaction?

CuSO4 + BaCl2 yields BaSO4 + CuCl2

AgNO3 + NaCl yields AgCl + NaNO3

Pb (NO3) 2 + 2NaCl yields PbCl2 + 2NaNO3

Zn + H2SO4 yields ZnSO4 + H2
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Alyson Hayes
ChemistryChemistry
What happens to the particles in a substance as it freezes?
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Junior Montgomery
ChemistryChemistry
Which is an example of a pure substance? A. coffee B. helium C. vinegar D. trail mix
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Triston Davidson
ChemistryChemistry
Choose the products that complete the reaction. The chemical equation may not be balanced.

Al + H2SO4 →?

Al2 (SO4) 3 + H20

Al2 (SO4) 3 + CO2+H20

Al2 (SO4) 3 + H2
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Brielle Dyer
ChemistryChemistry
Why is the half-life of a radioisotope important for radioactive dating?
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Dawson Daniels
ChemistryChemistry
Minerals are classified according to their
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Brittany Bartlett
ChemistryChemistry
Do all samples of specific substances have the same chemical composition?
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Gemma Collins
ChemistryChemistry
A rope experiences three 400 N forces to the left and three different 410 N forces to the right. (A) Will accelerate to the left (B) Will accelerate to the right (C) Will not accelerate
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