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grigory [225]
2 years ago
12

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

Chemistry
2 answers:
almond37 [142]2 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]2 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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A 2.75 kg sample of a substance occupies a volume of 250.0 cm3. Find its density in g/cm3.
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Density is 0.011 g/cm3.
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0.350 mol of a solid was dissolved in 260 mL of water at 21.2 oC. After the solid had fully dissolved, the final temperature of
Fittoniya [83]

Answer: Heat of the solution  = mass water × specific heat water × change in temperature

mass water = 260ml (1.00g/ml ) = 260g

specific heat of water = c(water) = 4.184J/ g°C

Heat change of water = final temperature - initial temperature

                                       = 26.5 - 21.2

                                        = 5.3 °C

H = 260 g ( 4.184J/g°C ) (5.3°C) = 5765J

Molar heat = \frac{5765J}{0.350mol}

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7 0
3 years ago
A 1.85 kg textbook is sitting on a bookshelf 2.23 m above the floor. How much potential energy does it have?
neonofarm [45]

Answer:

\boxed {\boxed {\sf 40.4299 \ Joules}}

Explanation:

Potential energy is energy due to position. It is the product of mass, height, and acceleration due to gravity.

PE= m \times g \times h

The mass of the textbook is 1.85 kilograms. Assuming this is on Earth, the acceleration due to gravity is 9.8 meters per square second. The height is 2.23 meters.

  • m= 1.85 kg
  • g= 9.8 m/s²
  • h= 2.23 m

Substitute the values into the formula.

PE = 1.85 \ kg \times 9.8 \ m/s^2 \times 2.23 \ m

Multiply the first 2 numbers together.

PE=18.13 \ kg*m/s^2 *2.23 \ m

Multiply again.

PE= 40.4299 \ kg*m^2/s^2

  • 1 kilogram square meter per square second (1 kg*m²/s²) is equal to 1 Joules (J)
  • Our answer of 40.4299 kg*m²/s² is equal to 40.4299 J

PE= 40.4299 \ J

The textbook has <u>40.4299 Joules of potential energy.</u>

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3 years ago
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