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Harrizon [31]
4 years ago
15

Explain why desalination plants are not always a good resolution.

Chemistry
1 answer:
Gre4nikov [31]4 years ago
7 0

Answer:desalination is very expensive.

Explanation:

Desalination is a very expensive procedure.

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What molecules do not attract each other
ExtremeBDS [4]

Answer:

Non-polar and non-polar molecules do not attract each other.

Explanation:

Dont forget to mark me as brainliest if it helped you ( Seriously you will thank me later)

6 0
3 years ago
Read 2 more answers
Which of the following is not a method of preserving metal?
olga55 [171]

Answer:

I believe the answer is a

Explanation:

Painting does not save the chemical structure for preserving metals.

If this helped can i please have brainliest?

6 0
3 years ago
I need help finding the formulas of these ionic compounds
AleksandrR [38]
Li3PO4
Cs3N
KL
BaF2
BaO
Reaction of. An acid and a base so it consists of an cation and anion so then you take the name of the anion and then the name of the cation take the atomic symbols and depending on the group it’s in add the numbers ? I think x
5 0
3 years ago
A radioactive isotope of potassium (k) has a half-life of 20 minutes. if a 43 gram sample of this isotope is allowed to decay fo
Ksenya-84 [330]

Hello!

The half-life is the time of half-disintegration, it is the time in which half of the atoms of an isotope disintegrate.

We have the following data:

mo (initial mass) = 43 g

m (final mass after time T) = ? (in g)

x (number of periods elapsed) = ?

P (Half-life) = 20 minutes

T (Elapsed time for sample reduction) = 80 minutes

Let's find the number of periods elapsed (x), let us see:

T = x*P

80 = x*20

80 = 20\:x

20\:x = 80

x = \dfrac{80}{20}

\boxed{x = 4}

Now, let's find the final mass (m) of this isotope after the elapsed time, let's see:

m =  \dfrac{m_o}{2^x}

m =  \dfrac{43}{2^{4}}

m = \dfrac{43}{16}

\boxed{\boxed{m = 2.6875\:g}}\end{array}}\qquad\checkmark

I Hope this helps, greetings ... DexteR! =)

8 0
4 years ago
Explain why the number of neutrons is not a factor in determining the charge of an ion.
Delvig [45]

Answer:

neutrons have a neutral charge, not positive or negative, therefore they won’t effect the charge in any way

Explanation:

8 0
3 years ago
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