They are all covalent compounds as they are made up of nonmetals. Ionic compounds are made up of a nonmetal and a metal. Some of the compounds are organic because they contain carbon so they cannot all be classified as inorganic. CH4, which is methane is reactive so this makes D false.
The correct answer is B) covalent bonds.
Answer:
C. 167 kJ
Explanation:
The minimum amount of heat require to complete turn the ice into liquid water is equal to the latent heat of the ice, that is, the amount of heat needed by the ice to turn into water. This amount is calculated by:
(1)
Where:
- Mass of ice, measured in kilograms.
- Latent heat of fusion, measured in kilojoules per kilogram.
- Latent heat, measured in kilojoules.
If we know that and , the latent heat of ice is:
Therefore, the correct answer is C.
We must use two formulas of energy first how energy is related to wavelength:
Such that , c is the speed of light in a vacuum and h is Plank's constant.
And the second equation is how energy relates to voltage:
Such that q is the charge of the particle (in this case the electron) and V is voltage. By substituting the second equation into the first we have:
We know that:
And so: