Ep-20 in general, what are dry chemical fire extinguishers designed to do?

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.

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

Answer asap need it by wednesday morning calculate the ph of 0.02m hcl best answer will be brainliest