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Citrus2011 [14]
3 years ago
14

PlEASE HELP MEEEE ASAP 50 PTS

Chemistry
1 answer:
Over [174]3 years ago
8 0

In the given reaction potassium metal is placed in water and when a reactive metal is placed in water, it reacts with water to form metal hydroxide and hydrogen gas, as a result, potassium hydroxide and hydrogen gas are produced in the reaction. A redox reaction is a reaction in which a substance is oxidized during the reaction whereas some other substance is reduced during the reaction, simultaneously.

The given chemical reaction is:

2K(s) + 2H20(l) arrow 2KOH(aq) + H2(g)

Hope it Helps! Please mark as Brainliest!

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Which type of heat exchanger shell and tube or plate heat exchanger is suitable for evaporation?
klasskru [66]

Answer:

shell and tube type heat exchanger

Explanation:

for evaporation the shell and tube type heat exchanger is best suited.

  • in the plate heat exchanger there is gaskets in between every part so this part become weak part in heat echanger and there is possibilities of leakage through this part, there is no such problem in shell and tube type.
  • the plate type cant be used when there is high temperature and high pressure drop but shell and tube type can be used
  • in evaporation there the liquids change into vapors due to which there is sudden change in pressure and in which plate type is not used because there is chances of leakage
5 0
3 years ago
How do you intrusive rocks form
Elodia [21]

Answer: Intrusive rock also called plutonic rock. They are formed from magma forced into older rocks at depths within the earths crust.

Explanation:

8 0
3 years ago
Select the correct answer from each drop-down menu. carbon is found in all living organisms. the constant flow of carbon on eart
Nady [450]

The continuous cycling of carbon in the earyh is known as the carbon cycle.

<h3>What is the carbon cycle?</h3>

The carbon cycle is a cycle which explains the various processes by which carbon is recycled between the atmosphere and the earth.

The constant flow of carbon on earth through organisms and the air is known as the carbon cycle. Plants absorb carbon from the atmosphere in the form of carbon dioxide. They use it for respiration and food production.

Animals consume plants, transferring carbon along the food chain.

Plants and animals respire and release carbon into air. When the animals and plants die, they are eaten by decomposers.

Carbon enters back into the atmosphere in the form of carbondio dioxide.

Therefore, the continuous cycling of carbon in the earth is known as the carbon cycle.

Learn more about carbon cycle at: brainly.com/question/25845923

#SPJ4

5 0
2 years ago
A change in matter that produces new substances is called a _____. 1.mixture 2.physical change 3.solution 4.chemical change
12345 [234]

Answer:

Chemical Change

Explanation:

chemical bonds within the substance have been altered because a new substance has been produced. It cannot be a mixture because they do not involve changes in matter, it cannot be a physical change because they do not result in new substances, it is not a solution because those do not involve changes in matter.

7 0
3 years ago
Of the waves shown below, which has the most energy?
Triss [41]

Answer:

red it has to be red cuz it is the largest one out of it

5 0
3 years ago
Read 2 more answers
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