PLEASE HELP I WILL GIVE BRAINLIEST In the compound iron (III) oxide, also known as rust, the mass ratio of iron to oxygen is 7.0:3.0. A 33-g sample of a compound composed of iron and oxygen contains 10. g of oxygen. Is the sample iron (III) oxide? Explain your answer. (Hint: Turn the whole number ratios into unit ratios.) Show your work.

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume

i think that the answer is c

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.