The distinctive symbol used to identify radioactive materials is the:

20 drops hope this

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.

answerleaving cheese out to get moldy;

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.