Consider this equilibrium for a buffer solution: ch3cooh + h2o ch3coo- + h3o + . when a small amount of acid is added to this system, which statement is true when equilibrium is reestablished? a. [ch3coo-] and ph have both increased. b. [ch3cooh] and ph have both decreased. c. [ch3coo-] has decreased and ph remains relatively constant. d. [ch3cooh] has decreased and ph remains relatively constant. e. [ch3coo-] has increased and ph remains relatively constant.

e

Explanation:

answer: option (4) is the correct answer.

explanation:

areas which are at low altitudes and near the equator tend to receive direct sunlight from the sun. hence, heat energy or radiations from the sun make these areas warmer and they have warmest water.

whereas areas which are at high altitudes and away from the equator do no receive direct sunlight. hence, no direct contact from the sun makes these regions colder and thus, they have colder water.

thus, we can conclude that the statement areas at low latitudes near the equator have the warmest water because they receive the most direct sunlight best explains the relationship between an area's geography and the temperature of its surface water.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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