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3 years ago

How is the earth’s groundwater and surface water replenished

Chemistry

2 answers:

Oksanka [162]3 years ago

6 0

Answer:

The replenishment of groundwater takes place by precipitation, and on the basis of the geology and local climate, it is non-uniformly dispersed in both the quantity and quality. When the snow melts or rain falls, the evaporation of water takes place, some flows overland and gets gathered in streams, some get transpired by plants, while some infiltrate into the cracks or pores of the rocks and soil. After the requirements of water for the plants and soil gets fulfilled, the excess water gets infiltrate to the water table.

Similarly, the surface water, that is, the lakes, streams, rivers, and others get replenished via the process of precipitation. This can be in the form of hail, snow, rain, and others. The ice or snow melt also recharges surface water.

elixir [45]3 years ago

3 0

The water cycle? hope this helped

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Which factor is generally responsible for high melting points?

kherson [118]

The factor that is generally responsible for higher melting point is intermolecular forces. The compounds that are covalent in nature are made of molecules rather than ions. It has been seen that some of the covalent compounds have polar molecules at one end, due to which the one end has more electronegative force than the other. The electrostatic force that is bounding the compound is the main cause of higher melting point of this compound. So it is true that with the increase of polarity of a compound creates higher melting point. .. hope I helped

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3 years ago

Once formed, how are coordinate covalent bonds different from other covalent bonds?

-Dominant- [34]

Answer:

$\boxed {\boxed {\sf {One \ atom \ donates \ both \ electrons \ in \ a \ pair}}}$

Explanation:

A covalent bond involves the sharing of electrons to make the atoms more stable, and so they satisfy the Octet Rule (8 valence electrons).

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3 years ago

When benzene (c6h6) reacts with bromine (br2) bromobenzene(c6h5br) is obtained: c6h6 + br2 → c6h5br + hbr what is the theoretica

saveliy_v [14]

Answer A) : We have to calculate the number of moles of Benzene involved in the reaction,

30 g / 78 moles of benzene = 0.384 moles

For bromine it will be the same process,

65 g / 159.8 moles = 0.406 moles

By observing the reaction given above we can say that the reaction ratio of bromine and benzene is 1 : 1

We need to find the mass of bromobenzene,

which should be, 6(12) + 5 (1)+ 79.90 = 156.9 g/mol

So, the mass of bromobenzene will be 156.9 g/mol X 0.3846 mol = 60.343 g

Hence the theoretical yield will be 60.34 g

Answer B) : To calculate the actual yield we have to divide it with theoretical yield.

(56.7g / 60.343 g ) X100% = 93.96 %

Here, we can say that we got 93.96 % of actual yield.

As we know it is impossible to get 100% yield in any reaction.

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3 years ago

Which molecule has a high specific heat?<br><br> a) C2H6<br> b) C2H6O<br> c) H2O

dem82 [27]

H2O is the correct answer :)

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2 years ago

Where did the molecules of carbon dioxide come from while the tortilla chip was burning

CaHeK987 [17]

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