The appropriate answer is D. volatility. Volatility refers to the susceptibility of liquids to vaporize. Perfume is liquid when applied but because of volatility, it has a tendency to vaporize and so it will convert to a gas and diffuse across the room. The process by which a liquid changes to a vapor is called evaporation.
Answer: C) Bent or angular, polar
Explanation:
The central atom oxygen has two lone pairs and two bond pairs in . The number of electron pairs are 4, that means the hybridization will be and the electronic geometry of the molecule will be tetrahedral. But as there are two lone pair of atoms around the central oxygen atom, repulsion between lone and bond pair of electrons is more and hence the molecular geometry will be bent shape.
The compound is polar as the net dipole moment of oxygen - fluoride bonds do not cancel each other out.
The empirical formula :
MgCl₂
Li₂O
<h3>Further explanation</h3>
Given
a 3.60 g of magnesium and 10.65 g of chlorine
b 9.1 g of lithium and 10.4 g of oxygen
Required
The empirical formula
Solution
The empirical formula is the smallest comparison of atoms of compound forming elements.
A molecular formula is a formula that shows the number of atomic elements that make up a compound.
(empirical formula) n = molecular formula
a. mol ratio of Mg (Ar=24 g/mol) and Cl(Ar=35.5 g/mol)
Mg : Cl
=3.6/24 : 10.65/35.5
=0.15 : 0.3 = <em>divide by 0.15</em>
=1 : 2
The empirical formula : MgCl₂
b. a. mol ratio of Li (Ar=7 g/mol) and O(Ar=16 g/mol)
Li : O
=9.1/7 : 10.4/16
=1.3 : 0.65 = <em>divide by 0.65</em>
= 2 : 1<em> </em>
The empirical formula : Li₂O