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3 years ago

An ongoing series of fission reactions is called a (n) _____. transmutation nuclear fusion chain reaction critical mass

Chemistry

2 answers:

viva [34]3 years ago

7 0

An ongoing series of fission reactions is called a (n) chain reaction.

Damm [24]3 years ago

4 0

Answer : The correct option is, Chain reaction.

Explanation :

Transmutation : It is defined as the process where a nucleus is converted to another nucleus. Or we can say that the conversion of chemical elements into another.

Nuclear fusion : It is a process where the two small nuclei converted to form a heavy nuclei and release some energy.

Nuclear fission : It is a process where a heavier nuclei (unstable nuclei) converted into two or more small (stable nuclei) and release some energy.

Critical mass : It is the smallest mass of substance that will start a chain reaction in a nuclear reactor.

Chain reaction : It is a independent series of the reactions. The nuclear fission of uranium are the example of chain reaction.

In fission of uranium nucleus, three neutrons are produced. Then these fast moving neutrons undergo successive collision with the other uranium nuclei.

As more and more nuclei are decomposes by the neutrons, more and more neutrons are produced and an uncontrolled fission process is started which is known as chain reaction.

Hence, an ongoing series of fission reactions is called a, chain reaction.

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When dissolved in water, a neutral molecule of calcium chloride dissociates into three ions - one calcium ion and two chloride i

Mashcka [7]

Explanation:

Calcium chloride is an ionic compound as it is formed by transfer of an electron to each chlorine atom.

So, being an ionic compound calcium chloride is able to dissociate completely into water.

Hence, the dissociation reaction will be as follows.

$CaCl_{2}(s) \rightarrow Ca^{2+}(aq) + 2Cl^{-}(aq)$

Since, two electrons has been lost by single calcium atom. Therefore, calcium atom will have a charge of +2.

Thus, we can conclude that the charge on the calcium ion, in elementary units is +2.

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3 years ago

In the titration between potassium iodate and the sodium thiosulfate solution, if the titration is not performed immediately aft

N76 [4]

Answer:

The calculated concentration of sodium thiosulphate solution will be less than the actual value.

Explanation:

When IO3^2- solution is added to KI solution, I2 gas is released ,then sulphuric acid is now added to facilitate reduction. In order to prevent the escape of iodine (I2) gas ,the solution must immediately be titrated with thiosulphate.

If the solution is not immediately titrated with thiosulphate, the concentration of iodine available in the system decreases. When this occurs, it will also cause a decrease in the amount of iodine available to react with thiosulphate thus decreasing the concentration of thiosulphate obtained from calculation

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3 years ago

A student has two unopened 33 CL cans containing carbonated water. Can A has been stored in the garage 32 degrees and can B has

IgorC [24]

Answer:

A. Can A will make a louder and stronger fizz than can B.

Explanation:

The solubility of a gas in a liquid decreases as the temperature increases, so the warmer can will have more undissolved carbon dioxide.

The warmer can will be under greater pressure, so it will make a louder and stronger fizz.

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3 years ago

Jerry listed the following process on his notebook:

topjm [15]

Answer:

Explanation:

1. The dew is formed when the water vapor at the atmosphere contacts the leaves, which are at a low temperature, so, the vapor temperature decreases, and the liquid is formed. So, it's a gas to liquid change.

2. Ice cubes are at the solid-state, thus this transformation is solid to a liquid change.

3. The cold juice is at a low temperature, so when the water vapor of the air contacts with the glass, its temperature decreases, and its change to a liquid phase. So, it's a gas to liquid change.

4. The evaporated water from the Earth's surface goes to the atmosphere, and, at high altitudes, the temperature is low, so the water vapor condenses and the drops get closer together forming the clouds. So, it's a gas to a liquid change.

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3 years ago

1 Which of the following is an example of periodicity?

Mademuasel [1]

Answer:

A:UNDERSTANDING CONCEPTS PART A 13) Which of the following is an example of periodicity? A) eating breakfast

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2 years ago