If the sun shining through windows hits the air in a sealed room what happens to the air pressure in that room

Which is true of the reactants in this displacement reaction? fe + 2hcl fecl2 + h2 a. the reactants are located to the left of the arrow in the chemical equation. b. the reactants contain 1 iron atom, 2 hydrogen atoms, and 1 chlorine atom. c. the reactants are the atoms, molecules, or compounds formed in the reaction. d. the reactants have the same physical and chemical properties as the products.

What is important to study for nios grade 12 chemistry? i have only one month left.

Describe the interaction that occurs between two objects with the same electrical charge.