Answer:
When Zinc reacts with hydrochloric acid the following reaction takes place:
Zn+2HCl→ZnCl
2
+H
2(g)
↑
Here 1 molecules of hydrochloric acid taking part in the reaction,the number of molecules of hydrogen produced in the reaction.
4molesofHCl×
2molesofHCl
1moleofH
2
=2molesofH
2
Advantages
less wasted energy
Reduces fossilisation
Disadvantages
- Expensive
- doesn't look nice ( apparently)
Perhaps the most important use of tin, historically, has been to make bronze — an alloy of copper and tin or other metals — that changed civilization by ushering in the Bronze Age. People began making or trading for bronze tools and weapons at different times, depending on geography, but the Bronze Age is commonly accepted to have started around 3300 B.C. in the Near East.
-Electric and Light
Hope this Helps!