2 Points How does the intensity of a sound wave change if the distance from the

source is increased by a factor of 4?

O

A. The intensity increases by a factor of 4.

O

B. The intensity decreases by a factor of 4.

O

C. The intensity decreases by a factor of 16.

O

D. The intensity increases to by a factor of 16.

SUBMIT

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.

b. is the answer hoped i        

i believe the answer is three water molecules

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.