Which of the following is a statement of Hess's law? O A. The enthalpy of reaction is exothermic if all the intermediate steps
are exothermic.
B. The enthalpy of reaction is determined from temperature changes
in the reaction.
C. The enthalpy of reaction does not depend on the steps taken in
the reaction.
O D. The enthalpy of reaction is known only for reactions that are
directly measurable.

What is the maximum number of electrons that an atomic orbital can contain?

Which best explains why an iceberg floats?

Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant