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Gnoma [55]
3 years ago
14

29. Beetles undergo a complete change during their growth and development. This process

Chemistry
1 answer:
kifflom [539]3 years ago
4 0

Answer:

ttfyggayxdy used to usual faith using

Explanation:

ttdrft

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Is clear water pumped from a deep aquifer a pure substance?
Alexandra [31]

The substance which has definite composition with definite physical and chemical properties is said to be pure substance. These substances are not separated by the different physical techniques such as filtration, distillation, evaporation etc.

The clear water pumped from a deep aquifer is a pure substance because water is a pure compound which consist of constant single type of atoms or group of atoms and water has specific value of boiling and melting point. Water is also not separated into units or constituents by physical technique.

Hence, clear water pumped from a deep aquifer is a pure substance.


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Water freezes at 32 degrees
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Fahrenheit

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£<br> 5.1.4 Quiz: Hydrocarbons<br><br> What is the name of this molecule?
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£ is not a molecule. It is a currency. That is pounds sterling, used in the U.K.
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3 years ago
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Why does the colour of copper sulphate solution change when an iron nail is dipped in it?
sineoko [7]

Answer:

bcoz iron displaces copper and form the solution iron sulfide

Explanation:

when we dip iron nail in copper sulfate solution,then iron starts reacting with the solution and due to displacement reaction between them iron is stronger metal than copper so it displaces copper and form iron sulfide:

CuSO4+3Fe---->Fe3SO4+Cu

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Write the chemical formula for gold (I) sulfide.
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Au2s

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