From an environmental point of view, what is the advantage of hydrogen gas over methane gas?

What is the independent variable in this investigation? mass volume sample number substance density

Compare and contrast solutions and suspensions

Isopropyl alcohol, (ch3)2choh, is a common solvent. determine the percent by mass of hydrogen in isopropyl alcohol. a) 6.71% h b) 13.4% h c) 25.0% h d) 53.3% h