Mason compared the properties of two compounds. magnesium oxide is an ionic compound, and hydrogen peroxide is not an ionic compound. therefore, both compounds most likelyhave molecular structures. can be highly reactive. have low boiling points. can dissolve in water.

Can dissolve in water.

Explanation:

The compounds can be ionic, molecular or metals. Ionic compounds are formed by the bond between a metal and a nonmetal, in which the metal donates electrons (becoming a cation), and the nonmetal gains electrons (becoming an anion).

The molecular compounds are formed by the bonding of nonmetals, and the bond happens by the share of electrons. The metal bond occurs with metal elements, which loses electrons, and the cations are immersed in the electrons lost.

The properties of the compounds depend on the bond, the geometry, the molar mass, and the phase of it. So, comparing ionic and molecular compounds, both can dissolve in water. Generally, all the ionic compounds are soluble in water, and the molecular compounds are soluble if they're polar.

Only molecular compounds have molecular structures; the reactivity doesn't depend on the bond, but of the stability of the compound, and on with what compound it will react; the ionic compounds are strongly attracted by ionic forces, so they are solid at temperature ambient and have high boiling points. The boiling point of the molecular compound depends on its molecular mass.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

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