If the ratio of products and reactants are stable, the system is in .
Select one:
a. equilibrium
b. steady state
c. activation
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The correct answer is: equilibrium
Question 2
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The smallest particle of an element that still exhibits the chemical characteristics of that
element is a(n)
Select one:
a. electron.
b. atom.
c. chemical bond.
d. orbital.
e. proton.
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The correct answer is: atom.
Question 3
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,Straighterline AP1 201 GRADED QUIZ 1-8
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Isotopes of the same element have
Select one:
a. the same number of neutrons but different numbers of protons.
b. different numbers of protons and electrons.
c. the same mass number.
d. the same atomic number but differ in their mass numbers.
e. no mass number.
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The correct answer is: the same atomic number but differ in their mass numbers.
Question 4
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An individual hydrogen bond in a sample of water would be described as:
Select one:
a. strong and intramolecular.
b. strong and intermolecular.
c. weak and intramolecular.
d. weak and intermolecular.
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The correct answer is: weak and intermolecular.
Question 5
,Straighterline AP1 201 GRADED QUIZ 1-8
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When ionic compounds dissolve in water, their ions
Select one:
a. cling tightly together.
b. dissociate or separate from one another.
c. lose their charge.
d. get lost in the solvent.
e. settle to the bottom of the container.
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The correct answer is: dissociate or separate from one another.
Question 6
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Which of the following is a synthesis reaction?
Select one:
a. Two amino acids are bonded together to form a dipeptide.
b. Sucrose is chemically separated to form one molecule of glucose and one molecule of
fructose.
c. Sodium chloride is dissolved in water.
d. Several dipeptide chains are formed from digestion of a long polypeptide chain.
e. ATP is converted to ADP.
, Straighterline AP1 201 GRADED QUIZ 1-8
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The correct answer is: Two amino acids are bonded together to form a dipeptide.
Question 7
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Molecules that form when electrons are shared unequally between atoms are called
Select one:
a. salt molecules.
b. polar molecules.
c. nonpolar molecules.
d. lopsided molecules.
e. None of these choices are correct.
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The correct answer is: polar molecules.
Question 8
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An electrolyte is
Select one:
a. a combination of atoms held together by chemical bonds.
b. a positively charged ion.
c. a negatively charged ion.
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