Which of the following is an oxidation-reduction reaction? SO2(g) H2O(l) Right arrow. H2SO3(aq) CaCO3(s) Right arrow. CaO(s) CO2(g) Ca(OH)2(s) H2CO3(l) Right arrow. CaCO3(aq) 2H2O(l) C6H12O6(s) 6O2(g) Right arrow. 6CO2(g) 6H2O(l).

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)

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.