Which two solutions have similar solubilities at 40°c? na2so4 and nacl na2haso4 and nacl na2haso4 and na2so4 ba(no3)2 and ce2(so4)3 • 9h2o

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

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

Word equation for k(s) +h2o(l) yield koh (aq) + h2