When the disk of the moon mask the the disk of the sun,it creates a (solar) eclipse.
I think it is d. Because the process is not reversible and it a chemical process
Go here and see how:
http://www.rsc.org/learn-chemistry/resource/res00000698/using-indigestion-tablets-to-neutralise-an-acid?cmpid=CMP00005978
Answer:
hope it helped you
Explanation:
3 atoms of nitrogen and 4 atoms of hydrogen in each molecule
Answer:
the forces on it are balanced
Explanation: