Answer:
The answer is Sodium chloride.
Na is sodium and Cl is chlorine.
2.5X20=50g
50g should be the right answer
Mass=volumeXdenisty.
Answer:
Hydrogen may be used in fuel cells for local electricity generation or potentially as a transportation fuel. Hydrogen is produced as a by-product of industrial chlorine production by electrolysis.
Becoming an ion involves gaining or losing electrons
Electrons have a relative mass of 0
So adding or removing them doesn't change the mass of the atom
So the answer is (3) remains the same
