In the reaction shown, how many moles of HCl are needed to react with 2.4 moles of Al? 2 Al + 6 HCI - 2 AlCl3 + 3 H2
оа
7.2
Ob
6.4
Ос
0.8
d
1.3
е
4.8

Identify one disadvantage to each of the following models of electron configuration: dot structures arrow and line diagrams written electron configurations type in your answer below.

An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.