1. Why is it an advantage to run cars on liquid fuels, such as petrol, rather than solid fuels, such as coal or wood? 2.Explain why the density of a metal object decreases when the object expands.

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Apeak with a retention time of 407 s has a width at half-height (w1/2) of 7.6 s. a neighboring peak is eluted 17 s later with a w1/2 of 9.4 s. a compound that is known not to be retained was eluted in 2.5 s. the peaks are not baseline resolved. how many theoretical plates would be needed to achieve a resolution of 1.5?

Why are pipes bursting in the in extremely cold weather?

What type of organic molecule comprises the majority of a potato?