Seth learned that matter is always conserved. So he decided to do an experiment with iron (Fe), and oxygen in the air. Seth put 13 grams of tiny iron (Fe) pieces on the windowsill. At the end of his experiment, the iron was no longer shiny. When he put it on a scale, the mass now measured 21 grams. His friend argued that matter is not conserved. Is she correct? Why or why not?

precipitation

explanation:

when it goes from cloud to rain/back to earth in the form of rain

is there any options? maybe im just not seeing them but i need the options to

-love shrooms

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.