the state of having the same or similar relation, relative position, or structure
Explanation:
From the allergy of the sun. Because of a condition called Polymorphous light eruption that causes a spottyvree rash.
Answer:
FeS + 2HCl = FeCl2 + H2S
Explanation:
On the prodcuts side (right) Chlorine and Hydrogen already had 2 coefficents to start with. So you needed to change your reactant Chlorine and Hydrogren to two also.
Photoautotrophs use light to make their own energy