A 75.00 g sample of a substance is analyzed and found to consist of 32.73 g phosphorus and 42.27 g oxygen. calculate the percent composition of this substance.

Who might benefit financially the most from the EPA's claim

An exothermic reaction is accompanied by a decrease in entropy. how would this reaction be classified?

Both ti and hf behave as though they possess the same number of valence electrons. Which of the subshells in the electron configuration of hf behave as valence orbitals?

A small 21 kilogram canoe is floating downriver at a speed of 2 m/s. What is the canoe's kinetic energy?

A geologist sends you a sample that was collected in the field. you find that it is a gray-colored igneous rock containing amphibole and intermediate plagioclase feldspar.

One light year is about 9 trillion kilometers. Arcturus is a star that is 37 light years from earth. If you are about 11 years old now, how old will you be when light that is leaving Arcturus today reaches earth?

What is melted rock and minerals found below earths crust

What do many bases have in common? A. They often release oxygen gas. B. They often form hydrogen ions. C. They often release hydrogen gas. D. They often form hydroxide ions.

What is 3 tenths+4tenths

A lunar eclipse can only occur at which lunar phase? And what about a solar eclipse?