An atom has (+2) charge, if it has 12 electrons, what is its atomic number?

14.

Explanation:

Electrons have a negative charge, and since the atom has a charge of (+2) it would mean there are 14 protons. (2 more than the amount of electrons, to create a positive charge).

Protons also determine the Atomic number so, the atomic number is 14.

Amount of protons = atomic number.

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.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error