<span>CH4 + 2O2 --> CO2 + 2H2O </span>
<span>The Ionization energy decreases because the full s orbital shields the electron entering the p orbital. This is known as "shielding", When each new electron experiences attraction from the nucleus and repulsion forces from the S orbitals, the net force on outer shell electrons is significantly smaller. Therefore, ionization energy decreases during these groups.</span>
Density is defined as the ratio of mass and volume. The formula of density is:
-(1)
Density of milk =
(given)
Volume of milk =
(given)
Substituting the values in formula (1):



Hence, the mass of the milk is
.
Answer:
Explanation:
18.01528 g/mol. I googled this, but it would be 16 for O plus 2 for the 2 H's. 18 g/mol divided by 12.5g=1.44 mol of H20.
1.44mol*
molecules/mol= 8.6688*10^23.