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alexira [117]
3 years ago
9

Which characteristic is used to identify minerals?

Chemistry
2 answers:
koban [17]3 years ago
8 0

Answer:

b. location c. luster d. taste

Explanation:

  • The following physical and chemical properties for identifying the mineral are Color, Hardness, Luster, Taste, Odor, Etc. The properties help in identifying the place of origin the mineral has come from.  
  • In turn, location can be also used to identify a particular mineral or chemical origin. A mineral located in groundwater reserves has deposits of calcium and hence formed through the limestone rocks of the CaCo3 element.
  • Luster the reflectance properties of the rocks as some minerals don't have lust is called as "earthy," or "dull." And the color is an important property of the mineral and hence is a major tool in identifying the chemical and physical properties.
  • Other properties being Magnetism, Opaqueness and Specific Gravity.
snow_tiger [21]3 years ago
5 0
The ways to identify a mineral are LUSTER, density, hardness, and cleavage. 
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3 years ago
A 240.0 gram piece of copper is dropped into 400.0 grams of water at 24.0 °C. If the final temperature of water is 42.0 °C, what
ludmilkaskok [199]

The initial temperature of the copper piece if a 240.0 gram piece of copper is dropped into 400.0 grams of water at 24.0 °C is 345.5°C

<h3>How to calculate temperature?</h3>

The initial temperature of the copper metal can be calculated using the following formula on calorimetry:

Q = mc∆T

mc∆T (water) = - mc∆T (metal)

Where;

  • m = mass
  • c = specific heat capacity
  • ∆T = change in temperature

According to this question, a 240.0 gram piece of copper is dropped into 400.0 grams of water at 24.0 °C. If the final temperature of water is 42.0 °C, the initial temperature of the copper is as follows:

400 × 4.18 × (42°C - 24°C) = 240 × 0.39 × (T - 24°C)

30,096 = 93.6T - 2246.4

93.6T = 32342.4

T = 345.5°C

Therefore, the initial temperature of the copper piece if a 240.0 gram piece of copper is dropped into 400.0 grams of water at 24.0 °C is 345.5°C.

Learn more about temperature at: brainly.com/question/15267055

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Dvinal [7]
Seems right, but if it’s just asking for one i would pick B
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Answer:

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ExplanatioN:

<em>BeCaUsE</em>

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