Biology

Biology, 26.08.2019 21:30, cardsqueen

Why does water form hydrogen bonds?

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Chemistry, 12.07.2019 19:30, leslieevanessa

As water boils and turns to steam, what happens to the hydrogen bonds? a. the hydrogen bonds become stronger. b. the hydrogen bonds break. c. the hydrogen bonds form a crystalline lattice structure. d. the hydrogen bonds generate additional bonds. e. the hydrogen bonds continually break and join together again.

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Biology, 31.07.2019 04:50, fluffyunicorn59803

(01.04 mc) which of the following best explains how hydrogen bonding affects the heat of vaporization for water? (2 points) the hydrogen bonds cause water to resist a change in temperature. the number of hydrogen bonds in water increases the amount of h+ ions available. the uneven pull of hydrogen bonds causes water molecules to repel each other. the hydrogen bonds cause water to be highly attracted to other substances.

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Biology, 11.09.2019 00:30, carter4026

5. what is the difference between covalent bonds and ionic bonds? a - covalent bonds are formed between atoms to form molecules; ionic bonds are formed between atoms to form compounds. b - covalent bonds involve the sharing of pairs between atoms; ionic bonds involve the sharing of single electrons between atoms. c - covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the electrical attraction between atoms. d - covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the sharing of protons between atoms. 8. an example of a van der waals interaction would occur is when a - two polar covalent bonds react b - an electron is lost from a hydrogen atom c - electrons are not distrubuited in a symmetrical fashion in a molecule d - overlapping occurs between hybrid orbitals 9. which of the following is responsible for the cohesive property of water? a - hydrogen bonds between the oxygen atoms of two adjacent water molecules b - covalent bonds between the hydrogen atoms of two adjacent water molecules c - hydrogen bonds between the oxygen atom of one water molecule and a hydrogen atom of another water molecule d - covalent bonds between the oxygen atom of one water molecule and a hydrogen atom of another water molecule e - hydrogen bonds between water molecules and other types of molecules

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Chemistry, 23.09.2019 09:30, zacharyminnick123

Which of the following is not true about hydrogen bonds? hydrogen bonds occur between hydrogen atoms and atoms of highly electronegative elements hydrogen bonds create surface tension in water. hydrogen bonds are bonds between hydrogen atoms hydrogen bonds are important in biology?

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