The number of protons tells you which element the atom is. The number of protons is the element number (Hydrogen - 1, Helium - 2, etc.).
The answer is each indicator has a narrow range. We need many different indicators to span the entire ph spectrum because each indicator has a narrow range.
Answer:
B
Explanation:
Because element is made up of only one type of atoms and figure b show only one type of atoms.
Answer:

Explanation:
= Density of acetic acid = 
= Mass of acetic acid = 
= Volume
Density is given by

The volume of acetic acid is
.
The answer has to be 22.4L