Consider that you collect hydrogen gas over water in an upside-down test tube. if the atmospheric pressure is 1.00, which of the following statements are true? select all that apply. a. the total pressure in the test tube is higher than the atmospheric pressureb. the total pressure in the test tube is equal to the atmospheric pressurec. the total pressure in the test tube is lower than the atmospheric pressured. the pressure of hydrogen in the test tube is higher than the atmospheric pressuree. the pressure of hydrogen in the test tube is equal to the atmospheric pressuref. the pressure of hydrogen in the test tube is lower than the atmospheric pressure

Dying the folding patterns of protein molecules can microbiologists better understand cellular processes as well as some diseases, such as alzheimer’s, that are caused by proteins that have misfolded. the folding of these complicated molecules can be simulated on computers, but it takes a lot of processor power and time for even expensive supercomputers to do this. a group of researchers at stanford university developed software that can be used to distribute the processing of data to anyone who is willing to donate time on their idle personal computers. as a result, the researchers have been able to achieve protein-folding simulations that are far better than those other computing methods have done. which statement best describes the work of these researchers? the work is not scientific because the data are not processed in one location. the work is not scientific because the simulations are not reproducible. the researchers applied creativity to solve a problem in running an experiment. the researchers used only well-established scientific techniques.

If i can still dissolve more sugar into the solution at a certain temperature what would i call that solution

Suppose a lab group reports a ppercent yield of sand of 105. is it really possible to collect more sand than was originally represented? what is the possible explanation for the extra product?