Đốt cháy hoàn toàn 1 lượng hh gồm 2 este. Dẫn sp cháy lần lượt vào bình 1 đựng P2O5 dư, bình 2 đựng dd Ca(OH)2 dư, thấy khối lượng bình 1 tăng 6,21g, bình 2 thu đc 34,5g kết tủa. Các este trên thuộc loại este nào

ask in english

Explanation:

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.