Explanation:
No of molecules=0.500×6.023×10²³=3.011×10²³ molecules
D. Model number 2
Hope this helps!! (:
<span><span>Atomic number36,</span><span>Atomic mass<span>83.80 g.mol -1,</span></span><span>Density<span>3.73 10-3 g.cm-3 at 20°C,</span></span><span>Melting point- 157 °C,</span><span>Boiling point<span>- 153° C</span></span></span>
Write chemical equations and corresponding equilibrium expressions for each of the two ionization steps of carbonic acid.
