Which statement is true about the potential energy diagram for an endothermic reaction? It starts at a higher energy value and ends at a lower energy value.
Energy value remains the same throughout the diagram.
Potential energy of the products is equal to the potential energy of the reactants. Products have more potential energy than reactants.

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

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

Given the following equation: 2a1 + 3mgcl2 --> 2alcl3 + 3mg how many moles of aluminum chloride are produced from 2.5 moles of magnesium chloride?