calculate how many g NaCl and how many g H2O are needed to prepare 250g of NaCl sodium chloride solutionwith mass ratio 0.9%

an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable(s).

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.

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.