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If you have the answers to anyone one of these questions please answer!?

1: A double chain silicate is..

A: a framework crystalline structure.

B: a double ring if silicon atoms.

C: two bonded single chains.

D: double the silicon atoms.

2: Which of the following groupings lists only minerals?

A: quartz,coal, basalt B: obsidian, gypsum, corundum.

C: pyrite, halite, brass.

D: fluorite, feldspar, copper.

3:Fluorscene is the property of a mineral that causes it to..

A: become chatoyant under phosphorescent light.

B: glow after ultraviolet light is turned off.

C: glow under ultraviolet light.

D: develop asterism under ultraviolet light.

4: Density is the ratio of..

A: the volume of a substance to the mass of the substance.

B: the mass of a substance to the weight of the substance.

C: the mass of a substance to the hardness of the substance.

D: the mass of a substance to the volume of the subtance.

5: What us true of isolated tetrahedra? A: they form simple links with other silicon or oxygen atoms.

B: they do not link with other silicon or oxygen atoms.

C: two single chains of tetrahedra bond to each other.

D: they link with other carbon or oxygen atoms.

6:Double chain silicates form when..

A:two single-chains of framework silicates bond to each other.

B: two rings of tetrahedra bond to each other.

C: two single-chains of tetrahedra bond to each other.

D: double tetrahedra bond to each other.

7: Which of these are common non-silicate crystalline structures?

A: cubes, hexagonal prisms, octahedral prisms, irregular masses.

B; single chain tetrahedra, framework, pyramids, rings.

C: hexagons, pyramids. quadrilaterals, tetragrams.

D: cubes, spheres, cylinders, pyramids .

8:Phosphorescent is the property of a mineral that makes it glow..

A: after ultraviolet light is turned off.

B: after fluorescent light is turned off.

C: under ultraviolet light.

D: under bright sunlight.

9: Cleavage is the tendency of a mineral to..

A: break unevenly with surfaces that are irregular.

B: break suddenly and without warning.

C: split along specific planes, forming flat surfaces.

D: split jaggedly, forming irregular surfaces.

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