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Usimov [2.4K]
4 years ago
5

What is crystacrystallization?

Chemistry
1 answer:
Reil [10]4 years ago
7 0
Crystallization<span> is the (natural or artificial) process where a solid forms where the atoms or molecules are highly organized in a structure known as a </span>crystal<span>. Some of the ways which </span>crystals<span> form are through precipitating from a solution, melt or more rarely deposited directly from a gas.</span>
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Hi May I know what is the answer and how to get it
Trava [24]

Answer:

D

Explanation:

When lead ions and sulfate ions bond, they form sediment so neither a nor b can be the answer.

The important thing is that two nitrate ions were originally bonded with one lead ion, while two potassium ions bonded with a sulfate ion.

Finally, since potassium and nitrate ions don't form sediment these two ions must remain. Therefore the answer is D

8 0
2 years ago
Hey please answer this thanks.
Aleks04 [339]

Explanation:

Percentage composition of oxygen = (80/134) * 100% = 59.7%.

6 0
3 years ago
Why is RNA chemically unstable?
Zepler [3.9K]
<span>When a large number of atoms of the same isotope are observed they will have a statistically consistent half life.
</span>An unstable nucleus contains a near excessive number of RNA chemical can spontaneously break apart into one or more nuclei all with a lighter  state. #believe
8 0
4 years ago
A sample of helium gas has a pressure of 1.20 atm at 22°c. at what celsius temperature will the helium reach a pressure of 2.00
sukhopar [10]
Gay-Lussac's law gives the relationship between pressure and temperature of a gas.
it states that for a fixed amount of gas of constant volume pressure is directly proportional to temperature. 
P/T = k
where P - pressure, T - temperature and k - constant 
\frac{P1}{T1} =  \frac{P2}{T2}
where parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation.
temperature should be in the kelvin scale,
T1 = 22 °C + 273 = 295 K
substituting the values in the equation 
\frac{1.20atm}{295 K}  =  \frac{2.00 atm}{T}
T = 492 K
new temperature - 492 - 273 = 219 °C
5 0
4 years ago
What is not a basic need of all organisms? <br> soil<br> water<br> food<br> air
dexar [7]

Answer:

soil

Explanation:

some organisms aren't plants

7 0
3 years ago
Read 2 more answers
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