The diagram below shows the Moon at four positions in its orbit around Earth An observer on Earth could see a solar eclipse when the Moon is at position

h let me think

answer; /// i do believe that the correct answer is (c)nuclear bond

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.