Making plastics and polymers from fossil fuels is not sustainable. Explain why

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

Compare and contrast physical changes with chemical changes.

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