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which statements reveal properties that can be used to identify minerals? select 3 choices.

a mineral is found in africa.

a mineral is made in a laboratory.

a mineral glows under ultraviolet light.

a mineral has hexagonally shaped crystals.

a mineral is warmed and smells like rotten eggs.

bottom three

Explanation:

i took that class last year

A mineral glows under ultraviolet light.  A mineral has hexagonally shaped crystals.  A mineral is warmed and smells like rotten eggs.

Explanation:

Any structural, physical and/or chemical properties of a mineral can help in its identification. The shape of crystals, light emission under ultraviolet light and release of smell like rotten eggs upon heating are some of the characteristic features that can help in identification of a mineral.  However, the location of its occurrence and natural or man made origin may be shared with other minerals as well and can not serve in identification.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.