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iren [92.7K]
3 years ago
13

Which of the following is most likely to move through the cell membrane by facilitated diffusion?

Chemistry
1 answer:
Jlenok [28]3 years ago
6 0
The correct answer is Na+
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if you are using a formula where you need the change in temperature, explain why it is not important whether your temperatures a
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This is because, Kelvins and Celcius degrees both agree at fixed points i.e; the lower fixed point and upper

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Which equation correctly relates kinetic energy mass and velocity
jolli1 [7]

Answer: The equation for kinetic energy is \frac{1}{2}mv^2

Explanation:

Kinetic energy is the energy possessed by the virtue of object's motion. It is defined as the work needed to move a body of a given mass from rest to its velocity.

Mathematically,

K.E.=\frac{1}{2}mv^2

where,

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3 0
4 years ago
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In living things what is the source of the carbon-14 that is used in radiocarbon dating
Mumz [18]
In living things, the source of the carbon-14 that is used in radiocarbon dating is carbon dioxide in the atmosphere.
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5 0
3 years ago
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Find the empirical formula of the compound ribose, a simple sugar often used as a nutritional supplement. A 14.229 g sample of r
MakcuM [25]

Answer:

CH2O

Explanation:

Firstly, we need to convert the masses of the elements to percentage compositions. This can be done by placing the mass of each element over the total mass multiplied by 100% . We can start with carbon.

C = 5.692/14.229 * 100 = 40%

O = 7.582/14.229 * 100 = 53.29%

H = 0.955/14.229 * 100 = 6.71%

We then proceed to divide each percentage composition by their atomic mass of 12, 16 and 1 respectively.

C = 40/12 = 3.333

O = 53.29/16 = 3.33

H = 6.71/2 = 6.71

Dividing by the smaller value which is 3.33

C = 3.33/3.33 = 1

O = 3.33/3.33= 1

H = 6.71/3.33 = 2

The empirical formula of the compound ribose is CH2O

6 0
3 years ago
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