When the products of a reaction have more energy than the reactants: the reaction is exothermic the reaction is endothermic the reactants gave up energy the h is positive

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided

What is the molar mass of the anhydrous compound? answer using four significant figures. 36.02 g/mol 120.15 g/mol 156.12 g/mol

Show how to convert the temperature 84.7° c to kelvin. include all steps and label the final answer.