Choose the pair of substances that are most likely to form a homogeneous solution. A) KI and HgB) LiCl and C6H14C) C3H8 and C2H5OHD) F2 and PF3E) NH3 and CH3OH

The answer is NH3 and CH3OH

Explanation:

The basic rule of a reaction is "like dissolves like" and for a homogenous mixture to form, there must be some common properties related to bonding.

1. KI and Hg

Normally mercury tends to form amalgam which is not a homogeneous solution.

2. LICL and C6H14

One is non polar and other is polar which makes the homogeneous reaction not possible.

3. C3H8 and C2H5OH

Both are miscible but will not develop homogeneous solution as propane is gas at normal temperature.

4. F2 and PF3

Flourine is highly electronegative and will repel fellow flourine making it not possible for homogeneous solution

5. NH3 and CH3OH

Both have same type of bonding and can react homogeneously.  

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms