The correct answer is
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C) 1200 g/m3. Let's see why. The relationship between liters and cube decimeters is
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Therefore,
However, we also know that
Therefore,
and
Therefore, the density of the problem
becomes
Given that,
Energy
Surface temperature = 11000 K
Emissivity e =1
(a). We need to calculate the radius of the star
Using formula of energy
Put the value into the formula
(b). Given that,
Radiates energy
Temperature T = 10000 K
We need to calculate the radius of the star
Using formula of radius
Put the value into the formula
Hence, (a). The radius of the star is
(b). The radius of the star is
Adian for one of the answers i think its 2Cr + 3Cl2 --> 2CrCl3 correct me if im wrong. None of these were on my quiz so im going to try to figure out the other two
The elements in NaCl are Na -sodium and Cl - chlorine
<u>Explanation:</u>
- sodium chloride (NaCl) is also known as common salt. The molar ratio of NaCl is 1:1 and has the molar mass of 22.99 and 35.45 respectively. The molar mass of NaCl is 58.443 g/mol. It is a odorless and colourless cubic crystal.
- It has the melting point of 800.7°C and has the boiling point of 1465°C. It has a face centered cubic crystal structure.The elements in NaCl are Na -sodium and Cl - chlorine
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Zero. Dipoles do not have an electric field as it is cancelled out by the dipole it's self. However, the general rule for the propagation of an electric field is the inverse square law.
k is simply a constant of the value 9.9 x