Calculate the concentration of ammonium ion that is required to prevent the precipitation of Cu(OH)2 in a solution with [Cu2+]=0.10 M and [NH3]=5.0×10−6 M. Cu(OH)2(s)NH3(aq)+H2O(l)↽−−⇀Cu2+(aq )+2OH−(aq)Ksp=2.0×10−19↽−−⇀NH+4(aq) +OH−(aq)Kb=1.8×10−5

Select the correct answer from each drop-down menu.describe what happens to a carbon-11 atom when it undergoes positron emission.the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons