Chemistry

Chemistry, 02.08.2019 05:30, smp32

Why do a and t (and g and c) pair in a dna double helix? covalent bonds form between them. van der waals forces are thus maximized. ionic interactions are thus maximized. hydrogen bonds form between them.

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Chemistry, 02.08.2019 05:30, livleluve76

Why do a and t (and g and c) pair in a dna double helix? covalent bonds form between them. van der waals forces are thus maximized. ionic interactions are thus maximized. hydrogen bonds form between them.

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Biology, 07.09.2019 20:10, jessica2138

Molecules are attracted to one another by van der waals forces. how do van der waals forces compare with ionic and covalent bonds? a. van der waals forces are stronger than ionic and covalent bonds. b. van der waals forces are weaker than ionic and covalent bonds. c. van der waals forces are stronger than ionic bonds but weaker than covalent bonds. d. van der waals forces are stronger than covalent bonds but weaker than ionic bonds.

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Chemistry, 20.09.2019 16:30, carog24

Note: a given bond type may be used more than once for these responses, or possibly not used at all.["covalent", "van der waals", "ionic", "hydrogen", "metallic"] bonding is similar to ionic bonding, except their are no high-electronegativity atoms present to accept any electrons that the present atoms are willing to donate.["van der waals", "metallic", "covalent", "hydrogen", "ionic"] bonds are the only primary bonds that are themselves directionally dependent. (hint: for one of the other primary bonds, a large collection of the particles will adopt a necessary geometry, but this is not directly caused by a constraint on where any two particles are allowed to "touch" one another.)["van der waals", "metallic", "covalent", "hydrogen", "ionic"] bonds are responsible for binding atoms together within a molecule of propane, whereas["van der waals", "metallic", "covalent", "hydrogen", "ionic"] bind separate propane moleculestogether in a condensed state.["ionic", "hydrogen", "metallic", "covalent", "van der waals"] bonds are responsible for binding noble gas atoms together in a condensed state.my guesses: metallic--> covalent--> van der waals--> hydrogen--> ionic only 2/5 were rightcovalent--> covalent--> van der waals--> covalent--> van der waals only 2/5 were right

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Biology, 30.10.2019 07:31, naiajNan

Why do complementary nucleotides across the double-stranded dna bond together using hydrogen bonds rather than covalent bonds? a) covalent bonds would be too strong to allow the double helix to easily separate and make templates available for replication and transcription. b) covalent bonds are energetically too expensive to produce. c) covalent bonds would not allow bases to pair according to chargaff's rules. d) covalent bonding across the double helix would make the dna less stable than hydrogen bonding across the double helix. e) there are no enzymes that are capable of forming covalent bonds across the double helix.

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Why do a and t (and g and c) pair in a dna double helix? covalent bonds form between them. van der...

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