Achemist in the nineteenth century prepared an unknown substance. in general, do you think it would be more difficult to prove that it is an element or a compound? explain.

Ithink it’s one of those things that you put the object on

Hope the image of the frequency formula

Any vitamins or supplements can be obtained without prescription and are widely used as alternative from western medications. most supplements are not valued by the fda or any other drug and food agencies.

Depends on the speed of the car.