What's that GCSE question on chemistry AQA where it's like what temperature should the fractionating column be and then there's a question on like diesel being heavy

a polar bond is formed when electrons are shared unevenly between atoms

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?