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slamgirl [31]
3 years ago
15

How many total atoms are in 3Na2SO4?

Chemistry
2 answers:
LUCKY_DIMON [66]3 years ago
7 0
A) 21 atoms in total
tigry1 [53]3 years ago
5 0

Answer:

A. 21

Explanation:

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Of ozone, molecular oxygen, and oxygen radicals, which is the most stable form of oxygen? How do you know?
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Oxygen has a strong double bond which has more stability than the single co-ordinate bond in ozone, therefore more energy is required to break the O2 bonding than ozone, so the ozone molecule is more reactive than oxygen gas. ... The oxygen free radical contains two unpaired electrons in its valence shell.

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Which statement describes the energy involved in diffusion? Diffusion requires energy in all cases. Diffusion requires energy on
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Both b and d can be correct

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Generally, diffusion does not require energy (<em>making option a wrong</em>) because it is the movement of particles from a region of high concentration to a region of low concentration hence diffusion moves particles in the direction of a concentration gradient. An example of this is the passive transport (for instance, uptake of glucose by a liver cell).

However, in some cases, when diffusion is against the concentration gradient (i.e when particles move from a region of low concentration to a region of high concentration), diffusion will require energy in a case like this (<em>making option c wrong</em>). An example of this is active transport (transport of protein called sodium-potassium pump which involves pumping of potassium into the cell and sodium out of the cell).

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3 years ago
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