Given the reaction:
NH3(g) + H2O() NH4+(aq) + OH–(aq)

Which is the conjugate acid-base pair?

A) H2O() and NH4+(aq)

B) H2O() and NH3(g)

C) NH3(g) and OH–(aq)

D) NH3(g) and NH4+(aq)

What happens when the temperature of a solution increases?

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397

Which radioisotope is used to date fossils? a. oxygen-16 b. carbon-14 c. uranium-238 d. carbon-12