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lara [203]
4 years ago
5

An engineer designing a new type of engine needs a liquid that can be heated and cooled quickly with as little exchange of energ

y as possible. Which property should the engineer primarily look for in the liquid?
Chemistry
1 answer:
Vladimir79 [104]4 years ago
4 0

Answer:

rubber

Explanation:

rubber does not take time to be heated?

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Plz HELP ITS SCIENCE!
Alexxx [7]
Cell wall:
-acts like a skin
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-rigid

Cell membrane:
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6 0
3 years ago
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Which phase of matter consists of ionized particles that move independently of each other/10900502/4a93e3cd?utm_source=registrat
vlada-n [284]
The answer is.............................................. plasma
7 0
4 years ago
If only 0.186 g of Ca(OH)2 dissolves in enough water to give 0.230 L of aqueous solution at a given temperature, what is the Ksp
Lilit [14]

Answer:

Ksp=5.20x10^{-6}

Explanation:

Hello there!

In this case, according to the solubility equilibrium of calcium hydroxide:

Ca(OH)_2\rightleftharpoons Ca^{2+}+2OH^-

Whereas the equilibrium expression is:

Ksp=[Ca^{2+}][OH^-]^2

It is firstly necessary to calculate the molar solubility given the grams and volume of the dissolved solute:

s=\frac{0.186g/(74.09g/mol)}{0.230L}=0.0109M

Now, according to the Ksp expression, we plug in s as the solubility to obtain:

Ksp=(s)(2s)^2\\\\Ksp=(0.109)(2*0.0109)^2\\\\Ksp=5.20x10^{-6}

Regards!

8 0
3 years ago
In humans carbon dioxide is excreted by _​
Firdavs [7]

Explanation:

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4 0
3 years ago
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Evaluate the exponential expression (−2)6.
Olegator [25]

A general exponential expression is something like:

A^n

This means that we need to multiply the number A by itself n times.

Using that we will get (-2)^6 = 64

With that definition, we can rewrite:

(-2)^6 = (-2)*(-2)*(-2)*(-2)*(-2)*(-2)

So we just need to solve the above expression.

Also, remember the rule of signs:

(-)*(-) = (+)

We will get:

(-2)*(-2)*(-2)*(-2)*(-2)*(-2) =  [(-2)*(-2)]*[(-2)*(-2)]*[(-2)*(-2)]

                                        =  4*4*4 = 16*4 = 64

Then we got:

(-2)^6 = 64

If you want to learn more, you can read:

brainly.com/question/17172630

6 0
3 years ago
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