Use your knowledge of the periodic table. Boron has the tendency to bond covalently. Which of the compounds is least likely to result?
A)
Boron nitride (BN)
B)
Potassium boride (KB)
Boron carbide (B40)
D)
Boron trifluoride (BF3)

Its b

Explanation:

I just got it right on the test

the answer is the

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.