Select all that apply.

why are mixtures (such as sugar in water) not given chemical formulas?

a.their elements are unknown.
b.no chemical bonding took place.
c.mixtures do not contain compounds.
d.the elements or compounds in the mixtures have no definite proportions.

I believe the correct answer from the choices listed above is option B. Mixtures are not given chemical formulas because no chemical bonding took place between the components in the mixture such as sugar in water. Sugar in water still remains to be sugar, its properties are the same but only it is dissolved in water.

Question 1:

For this case we have that by definition of properties of powers it is fulfilled that:

So, if we have the following expression:

We can rewrite it as:

So we have to:

Question 2:

For this case we have that by definition of properties of powers it is fulfilled that:

If we have the following expression:

We can rewrite it as:

So we have