There are:
3.41 moles of C
4.54 moles of H
3.40 moles of O.
Why?
To solve the problem, the first thing that we need to do is to write the chemical formula of the ascorbic acid.

Now, we know that there are 100 grams of the compound, so, the masses of each element will represent the percent in the compound.
We have that:

To know the percent of each element, we need to to the following:

So, we know that for the 100 grams of the compound, there are:
40.92 grams of C
4.58 grams of H
54.49 grams of O
We know the molecular masses of each element:

Now, to calculate the number of moles of each element, we need to divide the mass of each element by the molecular mass of each element:

Hence, we have that there are 3.41 moles of C, 4.54 moles of H, and 3.40 moles of O.
Have a nice day!
Boiling Water is a physical change. When water gets to a certain temperature, it's boiling point starts.
Answer:
temperature
Explanation:
Celsius is a unit of temperature. Another example of this would be Kelvin or Fahrenheit.
Answer:
A control group is someone who takes control over something so a tyrant or a dictator.
Explanation:
If this isnt what your looking for let me know, there wasnt alot of context.
Bleach would increase the pH because Bleach is a basic substance with a pH of about 12
Soda would lower the pH because the pH of sodas is somewhere around 2.5 (this is for coke, other sodas are a bit different)