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3 years ago

Determine whether the material is a mineral or a non-mineral based on the description

Chemistry

2 answers:

almond37 [142]3 years ago

3 0

Answer:

Calcium is homogeneous Three percent of Earth's crust is made of calcium Mineral
Glycerin is a viscous liquid at room temperature. Non-mineral
Emerald is hard and does not decay. Its chemical formula is Be3Al2(SIO3)6 Mineral
Chlorophyll is produced in plants during photosynthesis Non-mineral

Explanation:

Minerals are generally solid and inorganic substances, with defined crystalline structures, that exist in the earth's crust, formed by one or more chemical elements.

Calcium is the fifth element in abundance in the earth's crust, it is found forming mineral compounds such as calcite and dolomite or rocks such as marble, limestone and dolomite.

Glycerin is a colorless, slimy and sweet-tasting substance that is obtained from animal and vegetable fats and oils. According to its characteristics, it does not have a solid structure, which is why it is considered a non-mineral.

Emerald is a cyclic silicate of beryllium and aluminum whose chemical formula is Be3Al2(SiO3)6, it has a well-defined crystalline structure.

Chlorophyll is a green pigment that is present in the leaves and stems of many vegetables and is responsible for the photosynthesis process; does not have a crystalline structure defined by what is considered a non-mineral.

GarryVolchara [31]3 years ago

3 0

Answer:

Calcium is homogeneous Three

percent of Earth's crust is made

of calcium → Minerals

Glycerin is a viscous liquid

at room temperature. → Non mineral

Emerald is hard and does not

decay. Its chemical formula is

Be₃Al₂SiO₆ → Minerals

Chlorophyll is produced in plants

during photosynthesis → Non minerals

Explanation:

Minerals are natural occurring crystalline substances that has a definite chemical formula . Minerals are usually solid in nature and are inorganic . Minerals contains no plant or animals.

Calcium is homogeneous because it contains only 1 substance. Calcium is regarded as a mineral because it is natural occurring and has a definite chemical formula and solid. The earth crust contains abundant of calcium.

Glycerin is not a solid . The source is from plant which makes it organic. Glycerin is a non mineral because it is liquid and organic in nature.

Emerald is a mineral . Emerald has a definite chemical formula and it is natural occurring , crystalline ,solid and inorganic in nature.

Chlorophyll is a substance produce in plants during photosynthesis . chlorophyll is organic because it is produce in plants . Therefore chlorophyll is not a mineral.

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The Ksp of calcium carbonate in water at 25 °C is 2.25 x 10-8. CaCO3(s) <----> Ca2+ (aq) + CO3 2- (aq) What is favored at

seraphim [82]

Answer:

the solubility of CaCO3 is 0.015g/l 25 °C

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Explanation:

The Ksp of calcium carbonate in water at 25 °C is 2.25 x 10-8. CaCO3(s) <----> Ca2+ (aq) + CO3 2- (aq) What is favored at equilibrium?

solubility is the property of a solute to dissolve in a solvent(liquid, gas ) to form a solution(soution can be saturated ,unsaturated, or supersaturated)

CaCO3(s) <----> Ca2+ (aq) + CO3 2- (aq)

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2.25x 10^-8= $Ca^{2+} +CO^{2-}_{3} }$

let Ca^2+=CO3^-2=S

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S^2=2.25x10^-8

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0.00015*100g/mol

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