2. Which of the following reactions is most likely to occur:
a) Cu (s) + HCl (aq) →
b) Zn (s) + HNO3 (aq) →
c) Pb (s) + Na2SO4 (aq) →
d) Ni (s) + Ba(NO3)2 (aq) →

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

Find the mass in grams of 1.37x1020 particles of h3po4

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