CaO(s) + H2O(l) → Ca(OH)2(s): ΔH = −65.2 kJ Which statement about the reaction between calcium oxide and water is correct? (3 points)

Group of answer choices

130 kJ of heat are absorbed for every mole of CaO that reacts.

65.2 kJ of heat are absorbed for every mole of H2O that reacts.

130 kJ of heat are released for every mole of H2O that reacts.

65.2 kJ of heat are released for every mole of CaO that reacts.

answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.  

so what is the problem with your lab report and whats the subject of the lab report? i will you

answersilicon (si); oxygen (o);