22) Which of the following correctly describes the head and tails of phospholipi

Question

22) Which of the following correctly describes the head and tails of phospholipid mole A) the head is polar, hydrophilic; tails are nonpolar and hydrophobic B) the head is cationic, hydrophilic; tails are nonpolar and hydrophobic C the head is nonpolar, hydrophilic; tails are polar and hydrophobic D) the head is polar, hydrophilic; tails are cationic and hydrophobic 23) Which of the following results from the making of a bond? A) Molecules are broken down. C) Electrons are destroyed. B) Atoms become more reac D) Atoms become more stable 24) For an atom to be considered an ion: A) protons can outnumber neutrons. B) protons equal electrons D) neutrons can outnumber proto protons can outnumber electrons. 25) A polar covalent bond results when: A) one of the atoms sharing electrons is more B) two atoms sharing electrons are equally electronegative. O two atoms of the same element are sharing electrons. D) two atoms share electrons equally ative than the other atom. 26) An atom will react with other atoms only until: B) it forms four covalent bonds Q it has completely filled its outermost energy level. D) all of its inner shells have been filled. This diagram shows that two oxygen atoms interact B) to form nonpolar covalent bonds. D) to form an ionic bond. A) to form polar covalent bonds. to form bonds. hat kind of between sodium and chlorine?

Explanation / Answer

Answer:

22) Option A

A) the head is polar, hydropholic; tails are nonpolar and hydrophobic

23) Option D

Atoms become more stable.

24) Option C

protons can outnumber electrons.

25) Option A

one of the atoms sharing electrons is more electronegative than the other atom

26) Option C

it has completely filled its outermost energy level.

27) Option B

B) to form non polar covalent bonds

28) Option A

A) The sodium atom gives up one electron.

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