Chemistry Exam 3 assesses knowledge on energy requirements, chemical equations, pH levels, combustion reactions, biological molecules, and glucose metabolism. It tests analytical skills in interpreting and applying chemical principles, crucial for advanced chemistry learners.
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Walking
Cell repair
Breathing
Studying
All of the above require energy
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True
False
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Ammonia, water, ammonium, and hydroxide are all present at equilibrium.
Only ammonia and water are present at equilibrium.
Only ammonium and hydroxide are present at equilibrium.
Only hydroxide and hydronium are present at equilibrium.
It is not possible to say which molecules will be present at equilibrium.
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Change the coefficients to 2 for Al, 3 for CuO and 3 for Cu.
Change the subscripts of CuO to CuO2.
Add a molecule of AlO.
Change the state of matter in the reactants.
Change the subscripts of Al2O3 to be AlO
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The concentration of ammonium is increasing.
There is no ammonium at equilibrium.
Their concentrations are equal.
Their concentrations are constant.
There is no ammonia at equilibrium.
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Lipids
Carbohydrates
Proteins
Enzymes
Nucleic acids
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3.80 x 10^-8 M
0.870 M
2.63 x 10^-7 M
-2.63 x 10^7 M
3.80 x 10^8 M
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It is part of the cell membrane.
It is the energy currency of the cell.
It is a protein.
It is a catalyst, speeding up the rate of chemical reactions.
It is a component of the genetic material in the cell.
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The drug must be a complementary shape to the inceptor.
The drug must be able to form intermolecular forces the the receptor.
The drug must have functional groups in the correct positions.
The drug must have the correct polarity.
All of the above.
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Their concentrations are constant.
There is no ammonia at equilibrium.
There is no ammonium at equilibrium.
Their concentrations are equal. (If you choose this answer you DO NOT understand the concept of equilibrium.) /cry
The concentration of ammonium is increasing.
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All of these are major nutrients.
I, II, IV, and V
I and V
III, IV, and V
I, IV, and V
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-11.6
-2.39
7.00
11.6
2.39
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The temperature of the surroundings decreases.
The surroundings will become very cold.
The temperature of the surroundings increases.
The temperature of the surrounding does not change.
It is not possible to predict anything about the temperature of the surroundings based on this diagram.
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166 Calories
170 Calories
200 Calories
340 Calories
370 Calories
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Strong acids dissociate a molecule in aqueous solutions and weak acids..
Only strong acids produce hydronium in aqueous solutions.
Strong acids donate protons and weak acids do not.
Strong acids increase the concentration of -OH in solution
Weak acids degrade less readily than strong acids.
They are geometric isomers.
They are constitutional isomers.
They are conformers
They all contain hydroxyl groups.
They all contain carbonyl groups.
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E
0.80 g
12 g
35 g
105 g
1500 g
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III only
I and II
II and III
I only
II only
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A
B
C
D
A and C
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They contain an -OH group.
They contain a nitrogen.
They contain an oxygen.
They are all salts.
They contain a nonbonding pair of electrons.
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A
B
C
D
E
I is lower.
I is higher.
II is higher.
II is lower.
III is higher.
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They are constitutional isomers.
They all contain carbonyl groups.
They all contain hydroxyl groups.
They are geometric isomers.
They are conformers.
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II only
I and II
I and III
II and III
I only
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All of these molecules contain at lease one functional group.
All of these molecules except I contain at lease one functional group.
Molecules II, III, and IV contain at least one functional group.
Only molecules III and IV contain a functional group.
None of these molecules contain a functional group.
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Only ammonia and water are present at equilibrium.
Only hydroxide and hydronium are present at equilibrium.
Ammonia, water, ammonium, and hydroxide are all present at equilibrium.
It is not possible to say which molecules will be present at equilibrium.
Only ammonium and hydroxide are present at equilibrium.
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18
24
6
12
0
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They are the only hydrogens in the molecule.
They are all attached to the most electronegative atom in the molecule.
The are all attached to oxygen.
They are all attached to carbon.
They are all in a carbon-containing molecule.
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Hydroxide
Hydronium
A proton
An acid
A conjugate base
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2,3-dimethyl-4-pentanol
1,2,3,3-tetramethyl-1-propanol
1,2,3-trimethyl-1-butanol
2,3,4-trimethyl-4-butanol
3,4-dimethyl-2-pentanol
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An acid increases the concentration of hydroxide in solution.
An acid is a proton donor.
An acid increases the concentration of hydrnium in solution.
An example of an acid is HBr.
An acid increases the concentration of protons in solution.
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All of these molecules contain an alcohol.
I only.
II only.
III only.
Both I and II contain an alcohol.
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3.90
10.1
-3.90
11.9
-10.1
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Functional groups are used to organize and classify organic molecules.
Functional groups are used to predict reactivity of molecules.
Functional groups are used to predict physical properties of molecules.
Functional groups are used in naming organic molecules.
Functional groups are used to determine the natural abundance of a molecule.
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Less than zero
Exactly zero
Very large
Greater than zero, but not necessarily very large
It is not possible to predict anything about the enthalpy of this equation.
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All of these molecules contain an ether.
I only.
II only.
III only.
Both I and II contain an ether.
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