A sample of an unknown substance contains 24.0 grams of carbon and 2.0 grams of hydrogen. A sample of another unknown substance contains 24.0 grams of carbon and 6.0 grams of hydrogen. Which law does this observation demonstrate?

How many neutrons does a atom of cobalt have?

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.

If many scientists conduct the same or similar experiments, and all obtain similar results, a can be written, which is a generally agreed-upon statement that explains and predicts how a natural phenomenon works.