g Consider the balanced equation: 2 N2H4 (g) N2O4 (g) --> 3 N2(g) 4 H2O(g) How many moles of H2O would form if 9.75 moles of N2H4 completely react

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

Place the elements below in order of decreasing ionization energy. aluminum(al) chlorine(cl) magnesium (mg) sulfur(s)