In the Bronsted-Lowry system, a base is defined as: (a) a proton donor. (b) a hydroxide donor. (c) an electron-pair acceptor. (d) a water-former. (e) a proton acceptor.
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Arrhenius defined an acid as: (a) a species that can donate a proton. (b) a species that can accept a proton. (c) a source of OH- ions in water. (d) a sourse of H+ ions in water. (e) a species that can accept a pair of electron
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Consider the bicarbonate ion (also called the hydrogen carbonate ion). After drawing the correct Lewis dot structure(s), you would see: (a) two double bonds around the central carbon atom. (b) three single bonds around the central carbon atom. (c) four single bonds around the central carbon atom. (d) two equivalent resonance forms. (e) three equivalent resonance forms.
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Which is classified as nonpolar covalent? (a) the H-I bond in HI (b) the H-S bond in H2S (c) the P-Cl bond in PCl3 (d) the N-Cl bond in NCl3 (e) the N-H bond in NH3
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1.The valence electrons of representative elements are (a) in s orbitals only. (b) located in the outermost occupied major energy level. (c) located closest to the nucleus. (d) located in d orbitals. (e) located in the innermost occupied shell.
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