To how many significant figures would you need to express the mass of an hydrogen-1 atom in amu to notice the change in mass that occurs when it gains an electron

Draw the more stable lewis dot structure for bro2-

Determine the number o moles of ions/atoms/particle in the following: 2.50 miles of k2s (let me know how 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.