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Anton [14]
3 years ago
11

What is the amount of sediment a river carries

Chemistry
2 answers:
Butoxors [25]3 years ago
8 0
The amount of sediments being carried has been increasing rapidly. There is no certain amount of number
Vitek1552 [10]3 years ago
6 0

Answer:

The amount of sediments being carried has been increasing rapidly. There is no certain amount of number

Explanation:

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Describe the method of steel manufacture used when removes the impurities carbon, phosphorus and sulfur​
melisa1 [442]

Explanation:

Steelmaking is the process of producing steel from iron ore and/or scrap. In steelmaking, impurities such as nitrogen, silicon, phosphorus, sulfur and excess carbon (most important impurity) are removed from the sourced iron, and alloying elements such as manganese, nickel, chromium, carbon and vanadium are added to produce different grades of steel.

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6 0
3 years ago
Avagadros Law..<br>Definition please..​
Nikitich [7]

Answer:

"Avogadro's law is an experimental gas law relating the volume of a gas to the amount of substance of gas present. The law is a specific case of the ideal gas law. A modern statement is: Avogadro's law states that "equal volumes of all gases, at the same temperature and pressure, have the same number of molecules."

8 0
2 years ago
Read 2 more answers
Enlist any four examples of chemical change ?
masha68 [24]

Answer:

heat

wather

climate

cold

6 0
3 years ago
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A certain reaction with an activation energy of 205 kj/mol was run at 485 k and again at 505 k . what is the ratio of f at the h
lapo4ka [179]
Arrhenius' Law relates activation energy, Ea, rate constant, K, and temperature, T as per this equation:

K (T) = A * e ^ (-Ea / RT), where R is the universal constant of gases and A is a constant which accounts for collision frequency..

Then you can find the ration between K's at two different temperatures as:

K1 = A * e ^ (-Ea / RT1)

K2 = A* e ^(-Ea / RT2)

=> K1 / K2 = e ^ { (-Ea / RT1) - Ea / RT2) }

=> K1 / K2 = e ^ {(-Ea/ R ) *( 1 / T1 - 1 T2) }

=> K1 / K2 = e^ { (-205,000 j/mol / 8.314 j/mol*k )* ( 1 / 505K - 1/ 485K) }

=> K1 / K2 = e ^ (2.0134494) ≈ 7.5

Answer: 7.5




8 0
3 years ago
1Which is a dopant for a p-type semiconductor?
aalyn [17]

For a p type of semiconductor we need a dopant which is from 13th group in periodic table

Al , B, Ga, In Tl

So the correct element will be In : Indium

The other elements belongs to 15th group and hence will give n type semiconductor


5 0
3 years ago
Read 2 more answers
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