Answer:sulfur
An atom of sulfur contains 16 protons, because its atomic number is 16, and 16 electrons, in order to be net-neutral.
Explanation:
That force is electric force of attraction.
To calculate the pH of an aqueous solution you need to know the concentration of the hydronium ion in moles per liter (molarity). The pH is then calculated using the expression: pH = - log [H3O+].
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). ... Metabolic processes in animals and plants usually require oxygen, which is in lower concentration inside the cell, thus the net flow of oxygen is into the cell.
<span>lower than the boiling point of water
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