2 years ago

What is true about water that is freezing?

Chemistry

2 answers:

lbvjy [14]2 years ago

6 0

The answer is d becausei just took the test

Liono4ka [1.6K]2 years ago

4 0

It is going through a physical change

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2 years ago

A hypothetical metal crystallizes with the face-centered cubic unit cell. The radius of the metal atom is 234 picometers and its

AleksAgata [21]

Answer:

$\delta=101.13 g/cm^3$

Explanation:

As can be seen in the Figure in a face-centered cubic unit cell you have:

Six halves of atoms
Eight 1/8 of atom (1 in each corner)

In total:

$n_{atom}=6*0.5+8*\frac{1}{8}=4 atoms$

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$V_{cell}=1.28*10^{-23}cm^3$

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Expressing in mass:

$\delta=3.12*10^{23} atoms/cm^3* \frac{1 mol}{6.022*10^{23}}*195.08 g/mol$

$\delta=101.13 g/cm^3$

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3 years ago

Why is the cell membrane essential for cell homeostasis?

Nadya [2.5K]

Hello,

Here is your answer:

The proper answer to this question is option C "To allow waste to exit the cell"! The cell membrane controls the matieral that goes in and out of the cell!

Your answer is C.

If you need anymore help feel free to ask me!

Hope this helps!

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How many sigma and pi bond are there in naphthalene?

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Explanation:

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1 year ago

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