Which of the following is true for the endothermic reaction ba(oh)2(aq) + nh4no3(aq) --> ba(no3)2(aq) + 2nh3(aq) + 2h2o(l)?
a: h> 0 s> 0
b: h< 0 s< 0
c: h> 0 s< 0
d: h< 0 s> 0

About 70 percent of the earth's surface is water-covered, and about 96.5 percent of all earth's water is salt water. identify the watery feature on earth that is made of freshwater rather than salt water. a) bay b) glacier c) ocean d) sea it is not incomplete this is the true question

Identify and describe the three ways that mutations affect organisms.

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.