1) in 1783 antoine lavoisier showed that the heat produced by respiration was comparable to the heat produced when charcoal was burned. this experiment shows the similarity between respiration and a) boiling. eliminate b) combustion. c) ignition. d) melting.

The correct answer is B combustion.

Lavoisier’s oxygen theory of combustion was one of his most notable contribution to science and earned him the title of the “father of modern chemistry”. He recognized the combustible property of oxygen and that phosphorus and other metallic elements increased in terms of weight when burned.  

The answer is c i just finished taking the test

What is the question? if you were looking to design a method of separating something, you can separate this compound by putting both in water and allowing the water to dissolve the sugar. then pour it into another beaker and evaporate it then boom! salt and sugar : )