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Chemical compound: Quiz


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Question 1: All compounds decompose upon applying ________.
HeatEnergyTemperatureInternal energy

Question 2: For polymeric materials, such as minerals and many ________ oxides, the empirical formula is normally given, e.g.
HalogenNoble gasNonmetalMetal

Question 3: [4] Chemical compounds have a unique and defined chemical structure; they consist of a fixed ratio of atoms[3] that are held together in a defined spatial arrangement by ________.
Hydrogen bondChemical bondCovalent bondAromaticity

Question 4: A chemical compound is a pure chemical substance consisting of two or more different ________[1][2][3] that can be separated into simpler substances by chemical reactions.
HeliumCarbonChemical elementHydrogen

Question 5: Chemical compounds can be compound molecules held together by ________, salts held together by ionic bonds, metallic compounds held together by metallic bonds, or complexes held together by coordinate covalent bonds.
AromaticityDisulfide bondCovalent bondChemical bond

Question 6: This is the reason that noble gases do not frequently react: they already possess eight valence electrons (the exception being ________, which requires only two valence electrons to achieve stability).

Question 7: They become stable when they have the maximum number of possible electrons in their outermost energy level, which is normally two or eight ________.
Valence electronMetalNoble gasCarbon

Question 8: Some compounds regarded as chemically identical may have varying amounts of heavy or light ________ of the constituent elements, which will make the ratio of elements by mass vary slightly.
AtomIsotopeStable nuclideTechnetium

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