C. Because skin acts like a barrier that doesn’t allow pathogens or other micro organisms to enter unless their is a cut, scratch, etc. on your skin.
<u>Answer:</u> The group of elements that corresponds to the electronic configuration is group 13.
<u>Explanation:</u>
Electronic configuration is defined as the representation of electrons in a given atom.
Valence electrons are defined as the electrons present in the outermost shell or the sub-shell having highest value of 'n'.
We are given:
General electronic configuration =
where,
n = principal quantum number and is determines the energy level of the sub-shell
The number of valence electrons in the configuration are = 2 + 1 = 3
And, as the last electron is entering the p-subshell, so the element is a p-block element.
The given electronic configuration is of group 13 elements.
Hence, the group of elements that corresponds to the electronic configuration is group 13.
The percentage error is the error of the measured value to the true value. To find he percent error, the equation is as follows:
Percent error = |Measured Value - True Value|/True Value * 100
The || is needed to get the absolute value of the difference. Substituting the values,
Percent error = |(10.085 g/10 mL) - 0.9975 g/mL|/<span>0.9975 g/mL * 100
</span><em>Percent error = 1.1% </em>
Volume of the solution =
= 2 L solution x
Volume of solute = 7.5 mL
Volume of water (solvent) = 2000 mL - 7.5 mL = 1992.5 mL water
The structure of the benzene is C6H6