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What is the correct name for the precipitate formed when mixing potassium carbonate and nickelII) chloride?


A) potassium chloride
B) nickelII) carbonate
C) nickelIII) carbonate

Correct Answer

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Structural isomers are considered molecules with the same ____________.


A) kinds and number of atoms but a different arrangement of these atoms
B) number of electrons and protons but a different number of neutrons
C) molecular formula but with a different overall charge

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What is the overall charge on a sulfate ion?


A) 0
B) -1
C) -2

Correct Answer

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How many neutrons are in carbon-12?


A) 6
B) 7
C) 8

Correct Answer

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What is the correct formula for iodine monochloride?


A) ICl2
B) I2Cl
C) ICl

Correct Answer

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Where would you expect to find a stored bottle of NaOH in the laboratory? Paired item 1)


A) in the storage cabinet labeled strong bases
B) in the storage cabinet labeled strong acids
C) in the storage cabinet labeled solvents

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Determine the formula for copperII) nitrate.


A) Cu2NO3
B) CuNO3
C) CuNO3) 2

Correct Answer

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The chemical symbol for cobalt is _____.


A) Co
B) cO
C) CO

Correct Answer

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What is an anion?


A) An anion is defined as an atom that has lost electrons and forms a negative charge.
B) An anion is defined as an atom that has gained electrons and forms a negative charge.
C) An anion is defined as an atom that has gained electrons and forms a positive charge.

Correct Answer

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Which statement about subatomic particles is NOT true?


A) Protons and neutrons have almost the same mass.
B) Protons and electrons have opposite charges.
C) Protons and neutrons have the same charge

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The formula for potassium cyanide is KCN and the formula for calcium fluoride is CaF2. What is the formula for calcium cyanide?


A) Ca2CN
B) CaCN
C) CaCN) 2

Correct Answer

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Which elements are considered noble gases?


A) He, Ne, Ar
B) H, N, O
C) F, Cl, Br

Correct Answer

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Elements arranged horizontally in the periodic table are in the same_____?


A) group or family
B) period
C) column

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