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Gwar [14]
2 years ago
10

Helpppppppppppppppppp​

Chemistry
2 answers:
EleoNora [17]2 years ago
8 0

Answer:

it may be b becaise o helps in break down of food

aniked [119]2 years ago
3 0
It’s going to be osmosis in the cell would stop
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describe in general terms an experiment to determine the molal freezing point depression constant kf of water. Assume the availa
Dvinal [7]
A solution (in this experiment solution of NaNO₃) freezes at a lower temperature than does the pure solvent (deionized water). The higher the solute concentration (sodium nitrate), freezing point depression of the solution will be greater.
Equation describing the change in freezing point: 
ΔT = Kf · b · i.
ΔT - temperature change from pure solvent to solution.
Kf - the molal freezing point depression constant.
b -  molality (moles of solute per kilogram of solvent).
i - Van’t Hoff Factor.
First measure freezing point of pure solvent (deionized water). Than make solutions of NaNO₃ with different molality and measure separately their freezing points. Use equation to calculate Kf.

6 0
2 years ago
The picture below shows Enchanted Rock, a pink granite rock formation located in the Llano Uplift ecoregion. This land is most l
Katyanochek1 [597]

Answer:

what are the answers?

Explanation:

Probably going to be c for this, until the answers you choose are shown. very very sorry :c

5 0
2 years ago
Which group on the periodic table would have zero electronegativity because they have a full octet?
bija089 [108]
The group on the periodic table that would have 0 electronegativity due to the fact that their valence shell is full, i.e, have a full octet would be the inert or noble gases. They have a total of 8 electrons in their valence shell and are thus inert and cannot strongly attract electrons toward itself, from neighbouring atom electrons as it does not need to.
3 0
3 years ago
A gas that exerts a pressure of ? bar in a container with a volume of 0.5650 L will exert a pressure of 715.1 bar when transferr
uranmaximum [27]
Robert Boyle, the 17th century British chemist, first noticed that the volume of a given amount of gas is inversely proportional to its pressure when kept at a constant temperature. When working with ideal gases we use PV = nRT, but remember n, R, and T are all constant. Therefore we have:

PV(before) = PV(after)

P(0.5650) = (715.1)(1.204)
8 0
2 years ago
Read 2 more answers
A person's heart beats 72 times a minute. At this rate, how many times does it beat in one hour?
sesenic [268]

At one minute, a persons's heart beats 72 times.

Therefore, in one hour or 60 minutes, a person's heart will beat (60×72) times, i.e., 4320 times

Answer is 4320 times

6 0
2 years ago
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