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Alexeev081 [22]
3 years ago
10

Which planet is sometimes called Uranus’s twin? Saturn Pluto Jupiter Neptune

Chemistry
2 answers:
sattari [20]3 years ago
7 0

Neptune.

Because the size, mass, composition and rotation of Neptune and Uranus are very similar they're sometimes refered to as planetary twins.

kiruha [24]3 years ago
4 0

Answer: Neptune

Explanation: There are a bunch of physical, chemistry and geographic properties that ubicates to neptune as twin with uranus, for example The size, mass, composition and rotation of Uranus and Neptune are extremely similar.

Inclusive you can find investigation of the NASA that proof the similarity between this beautiful planets.

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What new information can you add to your definition of physical change ?
Mamont248 [21]
Its reversible, soluble, <span>mass, density, color, boiling point, temperature, and volume. </span>
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3 years ago
Is anyone online 2 help,Sodium is a reactive metal.Why nd don't spam brainlest and thx is waiting answer it ❤️​
morpeh [17]
It is because sodium is one of the most reactive metals.

There is a reaction would take place between magnesium and sodium chloride.

The chemical reaction between these two metals is given below.

It is Mg + 2NaCl >> MgCl2. + 2Na.

The symbol of this chemical element is Na.

It has the atomic number of eleven


Hope this helps *smiles*
6 0
3 years ago
400. mg of an unknown protein are dissolved in enough solvent to make 5.00 mL of solution. The osmotic pressure of this solution
ch4aika [34]

<u>Answer:</u> The molecular weight of protein is 1.14\times 10^2g/mol

<u>Explanation:</u>

To calculate the concentration of solute, we use the equation for osmotic pressure, which is:

\pi=iMRT

or,

\pi=i\times \frac{m_{solute}\times 1000}{M_{solute}\times V_{solution}\text{ (in mL)}}}\times RT

where,

\pi = Osmotic pressure of the solution = 0.0861 atm

i = Van't hoff factor = 1 (for non-electrolytes)

m_{solute} = mass of protein = 400 mg = 0.4 g   (Conversion factor:  1 g = 1000 mg)

M_{solute} = molar mass of protein = ?

V_{solution} = Volume of solution = 5.00 mL

R = Gas constant = 0.0821\text{ L atm }mol^{-1}K^{-1}

T = temperature of the solution = 25^oC=[25+273]K=298K

Putting values in above equation, we get:

0.0861atm=1\times \frac{0.4g\times 1000}{M\times 100}\times 0.0821\text{ L. atm }mol^{-1}K^{-1}\times 298K\\\\M=1136.62g/mol=1.14\times 10^2g/mol

Hence, the molecular weight of protein is 1.14\times 10^2g/mol

4 0
3 years ago
How many grams are in 5.2 grams of K
AleksAgata [21]
I think you meant K as in kilograms?
If so, the answer should be 0.0052.
4 0
2 years ago
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Kromozom sayisini yariya inmesini amaci
Advocard [28]
WHAT THE HECK!?!?!?! AM I SUPPOSE TO KNOW WHATEVER LANGUAGE THAT IS?!?!
5 0
3 years ago
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