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cestrela7 [59]
4 years ago
7

What is one difference between a cell wall and a cell membrane?

Chemistry
2 answers:
USPshnik [31]4 years ago
7 0
It’s B) cell walls act as a boundary that nothing can pass through. Cell membranes allow materials in and out of the cell. I have my book with me!
crimeas [40]4 years ago
6 0
<span>(A) Cell walls have gap junctions. Cell membranes have plasmodesmata.
</span>
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Elements within the same group of the periodic table behave similarly because they have the same number of ?
sammy [17]
The elements in each group have the same number of electrons in the outer orbital. Or also called valence electrons. Khan academy has a great video online explaining why this happens. (It only happens for main group elements). Here is a link (sorry you can’t click it in Brainly) https://www.khanacademy.org/science/chemistry/periodic-table/copy-of-periodic-table-of-elements/v/periodic-table-valence-electrons. Feel free to message me for a better explanation, I would explain now but I’m not sure how much you know about this. If you know how to write an electron configuration you can see how all the electron configurations for the same group (not the transitional metals only the main groups) have the same number of valence electrons. I hope that helped, sorry I was vague about the explanation :)
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3 years ago
Origin of hard water​
lisabon 2012 [21]

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ice

Explanation:

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A scientist made careful measurements of the pressure and temperature of many different gases. Based on these measurements, he c
alex41 [277]

Answer:

c. law

Explanation:

Law -

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A law is stated in words as well as in the form of some mathematical relationships or equations.

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The three steps involve;

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