Me with chemistry. a chemistry class sets up nine test tubes and places different masses of mno2 in each test tube. an equal amount of h2o2 is added to each test tube and the volume of gas produced is measured each minute for five minutes. the gas recorded is the total gas produced up to that point not what is produced that minute 1.what is the constant in the experiment? 2.what is the independent variable? 3. what is the dependent variable?

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.