Answer:
unsafe, solar
Explanation:
A lunar eclipse covers the moon which is safe to look at. New Moon, again is simply the moon. However, we should never look at the sun, eclipsed or not!
CuSO₄·5H₂O the pentahydrate is the most common form
[Cu(H₂O)₄]SO₄·H₂O → [Cu(H₂O)₄]²⁺ + SO₄²⁻ + H₂O
blue
Molar mass of A l 2 (S O 4 ) 3 = 342.15 g/mol
7.2g/ 342.15 g/mol
you can get number of moles.
then multiply that by12
The correct order of increasing dipole moment is BCl3 < BIF2 < BClF2.
What is dipole moment?
- The mathematical product of the separation of the ends of a dipole and the magnitude of the charges.
- More is the electronegativity of an atom more it will have pull of electrons towards itself. For example, in BCl3 electrons will be pulled towards chlorine atom as it is more electronegative than boron.Hence, the dipole moment is cancelled out. So, it will have zero dipole moment.
- In BIF2 and BClF2 , fluorine is more electronegative in nature and it is present in both the molecules.
- But chlorine is more electronegative that iodine atom. So, the dipole moment of BClF2 is more than the dipole moment of BIF2.
To learn more about dipole moments: brainly.com/question/14355450
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Answer:
The strength of these force of attraction is lesser in chalk hence it could be easily broken into small pieces by hammering. But the strength of inter molecular force of attraction is very strong in iron therefore it is not possible to break them into pieces by hammering.
Explanation:
hope this helps :)
