A hydrogen bonis
A) a sharing of a pair of electrons between a hydrogen and an oxygen nucleus.
B) a sharing of a pair of electrons between a hydrogen nucleus and either an oxygen or a nitrogen nucleus.
C) an attractive force that involves a hydrogen atom and an oxygen or a nitrogen atom that are either in two different molecules or within the same molecule.
D) none of these.
E) all of these.
Correct Answer:
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Q39: Instability of radioisotopes is causeby
A)sudden temperature variations.
B)environmental
Q40: In _ bonds, atoms sharelectrons equally.
A)double covalent
B)unstable
Q41: A _ is a compounthat releases ions
Q43: Which of thfollowing represents H+?
A)hydrogen ions
B)acid
C)base
D)hydroxyl ion
E)acceptor
Q45: Water has thability to retarheat gain anloss
Q46: Cellular pH is kept near a valuof
Q47: Methangas (CH4) is an examplof a moleculcontaining
Q48: A mix of glucosanwater is callea
A)compound.
B)suspension.
C)solvent.
D)solute.
E)solution.
Q49: _ is thtendency of water molecules to
Q63: A pH of 10 is how many
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