one of the buffers that contribute to pH stability in human blood is carbonic acid
(H2CO3). carbonic acid is a weak acid that dissociates into a bicarbonate ion (HCO3-)
and a hydrogen ion (H+)--H2CO3 → HCO3- + H+. if the pH of the blood drops, one
would expect:
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the HCO3- to act as a base and remove excess H+ with the formation of
H2CO3
the label on a container of margarine lists "hydrogenated vegetable oil" as the major
ingredient. what is the result of adding hydrogens to vegetable oil?
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, the hydrogenated vegetable oil stays solid at room temperature
many mammals control their body temperature by sweating. which property of water
is most directly responsible for the ability of sweat to lower body temperature?
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the absorption of heat by the breaking of hydrogen bonds
the organic molecules in living organisms have a measurably lower ratio of carbon-
13/carbon-12, two stable isotopes of carbon that comprise approximately. 1.1% and
98.9% of atmospheric carbon, respectively. what is a reasonable explanation for this
phenomenon?
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photosynthesis preferentially uses carbon dioxide molecules with carbon-
12, and the lower carbon-13/carbon-12 ratio propagates through the food
chain
which molecule is a saturated fatty acid?
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(H2CO3). carbonic acid is a weak acid that dissociates into a bicarbonate ion (HCO3-)
and a hydrogen ion (H+)--H2CO3 → HCO3- + H+. if the pH of the blood drops, one
would expect:
Give this one a try later!
the HCO3- to act as a base and remove excess H+ with the formation of
H2CO3
the label on a container of margarine lists "hydrogenated vegetable oil" as the major
ingredient. what is the result of adding hydrogens to vegetable oil?
Give this one a try later!
, the hydrogenated vegetable oil stays solid at room temperature
many mammals control their body temperature by sweating. which property of water
is most directly responsible for the ability of sweat to lower body temperature?
Give this one a try later!
the absorption of heat by the breaking of hydrogen bonds
the organic molecules in living organisms have a measurably lower ratio of carbon-
13/carbon-12, two stable isotopes of carbon that comprise approximately. 1.1% and
98.9% of atmospheric carbon, respectively. what is a reasonable explanation for this
phenomenon?
Give this one a try later!
photosynthesis preferentially uses carbon dioxide molecules with carbon-
12, and the lower carbon-13/carbon-12 ratio propagates through the food
chain
which molecule is a saturated fatty acid?
Give this one a try later!
