C is obvious because no other choice has any closer answer
The process is know as diffusion in which substances move from higher concentration to lower concentration
Answer: The amount of water formed is 12 moles
Explanation: Please see the attachments below
When light firm the sun passes through matter it’s slows down
Answer is: sodium fluoride NaF.
Sodium fluoride hydrolyse on strong base sodium hydroxide (NaOH) and weak acid hydrofluoric acid (HF), so water solution has pH greater that seven ant it is basic. Other salts have neutral or acidic pH value in water, because they hydrolyse on strong acid and weak or strong base.
