Use the reaction to answer the question. NH_ 4 + H_ 2 O →OH- + NH_ 4. Which statement about the reaction is correct? a.) h_2O is a base, and NH_4+ is its conjugate acid.
b.) NH_3 is a base, and NH_4+ is its conjugate acid.
c.) NH_3 is a base , and OH- is its conjugate acid.
d.) H_2O is a base, and Oh- is its conjugate acid.

How many moles of lead are in 1.50 x 10^12 atoms of lead? could you explain the answer as well and not just give it to me i am refreshing for finals and i need to know how to do it

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-

Which statement explains which thermometer is more appropriate to measure the temperature of a liquid at 43.6 degrees celsius a) thermometer a, because it measures temperature more accurately than thermometer b b) thermometer b, because it measures temperature more accurately than thermometer a c) thermometer a, because it measures temperature more precisely than thermometer b d) thermometer b, because it measures temperature more precisely than thermometer a