Taxol, used in the treatment of breast cancer, is produced by fungi in the bark of the Pacific Yew tree. Taxol is part of a class of structurally related natural compounds called taxanes that represent particularly challenging synthetic targets for organic chemists due to the complexity of their structure. In an effort to prepare a key eight-membered ring of taxol, compound 1 was prepared and treated with 9-BBN to give compound 2, followed by addition of a palladium catalyst under basic conditions, giving compound 3. Draw structures for compounds 2 and 3.

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.

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

girl imma just put my comment here because i need a couple point okurrttt