Given the reaction:
nh3 + hcl --> nh4cl
in this reaction, ammonia molecules (nh3) act as a base because they
(1) accept hydrogen ions (h+)
(2) accept hydroxide ions (oh-)
(3) donate hydrogen ions (h+)
(4) donate hydroxide ions (oh-)

The rock in a lead ore deposit contains 89 % pbs by mass. how many kilograms of the rock must be processed to obtain 1.5 kg of pb?

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

Asample of ammonia reacts with oxygen as shown. 4nh3(g) + 5o2(g) 4no(g) + 6h2o(g) what is the limiting reactant if 4.0 g of nh3 react with 8.0 g of oxygen? o2 because it produces only 0.20 mol of no. nh3 because it produces only 0.20 mol of no. o2 because it produces two times less no than nh3. nh3 because it produces three times more no than o2.