A 18.5 mL sample of Ba(OH)2 is titrated with HCl. If 37.5 mL of 0.921 M HCl is needed to reach the endpoint, what is the concentration (M) of the Ba(OH)2 solution

sry but any answer choices

the answers would be

the first one and the second one

there is none because earth is stationary and flat.

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.