Jan baptista van helmont did an important experiment related to photosynthesis. he weighed a small willow tree and a pot of soil. jan then planted the tree in the pot. over the course of five years, he added only water to the pot. at the end of five years, he weighed the tree and found that it had gained 74.4 kg. he weighed the soil, and it was only 57 g less. what do the results of this specific experiment demonstrate about what is needed for a plant to grow and increase its mass?

Why doesn't heat added to water make the tempature rise above 100c

Will give ! what are the advantages and disadvantages of nuclear power? check all that apply. one advantage of nuclear energy is that it does not produce carbon dioxide emissions. storage of nuclear waste is a short-term problem associated with nuclear energy. the problem with uranium mining is that a large quantity of uranium must be extracted to meet energy needs because the energy release from uranium fission is so low. safe operation of a nuclear power plant can be jeopardized by a human mistake.

Consider the following multistep reaction: a b→ab(slow) a ab→a2b(fast)−−−−−−−−−−−−−−−−− 2a b→a2b(overall) based on this mechanism, determine the rate law for the overall reaction. express your answer in standard masteringchemistry format. for example, if the rate law is k[a]3[b]2 type k*[a]^3*[b]^2