need help asap, In this reaction how many units of B are required to form 40 units of C? A+2B--->C​

Based on the equation and the information in the table, what is the enthalpy of the reaction?

The minerals found in bones are deposited by living cells called

You just calculated that the heat of fusion for chloromethane is 6400 j/mol. the heat of fusion for hydrogen is 120 j/mol.? which of the following account for this difference? more than one correcta. chloromethane can absorb more energy at the same temperature. b. hydrogen has stronger intermolecular forces than chloromethane. c. hydrogen molecules can pack more closely than chloromethane molecules. d. chloromethane experiences dipole-dipole interactions. e. chloromethane has a higher molar mass than hydrogen.