Explanation:
In chemistry, a chemical formula is a scientific notation to show the chemical proportion of atoms that represents a particular compound or molecule. The empirical formula of a chemical compound illustrates the simplest whole number ratio between the elements contained in the compound whereas the molecular formula is the representation of the actual whole number ratio between each element of the compound.
Given that the empirical formula of carbamide is 
, then, the corresponding molecular weight (
) is
.
Subsequently, using the relation
![n \ \times \[M}_{r}(\text{empirical formula})] \ = \ M_{r}(\text{molecular formula})](https://tex.z-dn.net/?f=n%20%5C%20%5Ctimes%20%5C%5BM%7D_%7Br%7D%28%5Ctext%7Bempirical%20formula%7D%29%5D%20%5C%20%3D%20%5C%20M_%7Br%7D%28%5Ctext%7Bmolecular%20formula%7D%29)
,
where 
is the multiple of empirical formula unit.
Therefore,
It would be known as a meth_(insert - ane, - ene, and -yne) hydrocarbon.
1 bond = -ane
2 bonds = - ene
And so on.
Answer:
C. Moving Balloon 1 can make Balloon 2 move without the balloons touching.
Explanation:
When two balloons are rubbed with a wool cloth, they get electrostatic charge and both become negatively charged.
If both balloons will be place close together, balloon 1 will push the balloon 2 far from itself without touching it as they both are negatively charged and things with same charges repel each other.
Hence, the correct answer is "C. Moving Balloon 1 can make Balloon 2 move without the balloons touching."
