Zinc + Hydrochloric Acid - Zinc Chloride and Hydrogen Gas Zn + 2HCI - ZnCl2 + Hz
I know there are 2 atoms of hydrogen in the products because there is

O a 2 in front of hydrochloric acid
O a 2 behind HCI
O a 2 behind H

O a 2 in front of hydrochloric acid

Explanation:

the given reaction is :-

=》Zn + 2 HCL -> ZnCl2 + H2

since, mass can't be created or destroy, so number of hydrogen atoms in the reaction should be equal in product as in reaction.

so, there is 2 hydrogen in product hence there are two hydrogen in the reactants also.

it is showed in the reaction by putting a 2 in front of hydrochloric acid ( HCl ).

b. th3 n4zc4 pl4t3 15 c0nv3rg1ng w1th the s0uth 4m3ric4n pl4t3.

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.