Whion is a correct step in a scientific experiment involving acids and bases? Mixing two acids to form a neutral solution.
Using an indicator to measure the hydrogen ion concentration of a solution.
Pouring acid onto an indicator to measure the pH of the indicator.
Dissolving an indicator in an acidic solution to increase its pH.

- decrease the number of plants and animals living in the water.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

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.