Answer:
Sodium has 1 valence electron and bismuth has 83 electrons (5 valence electrons)
Explanation:
Answer:
102
Explanation:
(20+1+30)*2
you add the total number of atoms that can be found in one molecule of vitamin A then multiply by 2
<u>Answer:</u>
<em>One mole of a substance forms Instead of standard atmospheric pressure and temperature from its pure elements{ conditions being the same} then this change and enthalpy is known as </em><em>enthalpy of formation.</em>
<u>Explanation:</u>
The equation of this formation can let us know what actually happens
ΔH = ΔHf(products) - ΔHf (reactants)
Hence we can say this change in enthalpy formation is the difference between the sum of product and sum of reactants.
Answer:
Ethanol
Explanation :
The molecular structure of ethanol C2H5OH it is seen that there is a hydrogen atom attached to an oxygen atom, hence hydrogen bonding. This makes it has a greater surface tension than dimethyl ether.
Dimethy ether however has dipole moment in its structure. Dipole moments are said to be existent in a molecule when the charges are separated. This makes dimethyl ether have a lower surface tension. In the molecular tructure of dimethyl ether CH3OCH3) the oxygen atom is a negative atom in between two positive methyl group.
The nails would be used as they're made of iron:)
