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Wewaii [24]
3 years ago
12

Which of the following describes nuclear fission?

Chemistry
2 answers:
valentina_108 [34]3 years ago
7 0
Good morning!

<span>It requires extremely high temperatures to begin the reaction.

</span>
While nuclear fusion involves the union of atoms, fission is the breaking of an atomic nucleus into two smaller parts. For this to happen it is necessary that the atom reaches a very high temperature.
Hugs!
kvv77 [185]3 years ago
5 0

Answer: The correct answer is its chain reactions can be initiated by neutrons.

Explanation: There are 2 types of nuclear reactions:

1. Nuclear fission reaction: In these type of reaction, one larger nuclei breaks down into two or more smaller nuclie's. Its chain reaction is initiated when the nucleus is struck with neutrons.

2. Nuclear fusion reactions: In these type of reaction, two small nuclei combine together to form a single large molecule. This type of reaction requires high temperature to occur.

Both these reactions occur due to the change in the nuclei of an atom.

From the above information, the nuclear fission chain reactions re initiated by the neutrons.

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What is the volume of 0.5 M solution of NaOH that contains 3.6 mol of solute?
nasty-shy [4]

Answer:

The volume of NaOH solution is 0.532 L.  

Step 1. Calculate the moles of NaOH.

Moles = 11.5 g NaOH * (1 mol NaOH/40.00 g NaOH) = 0.2875 mol NaOH

Step 2. Calculate the volume of NaOH

Volume = 0.2875 mol NaOH * (1 L NaOH/0.540 mol NaOH) = 0.532 L

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Give the molecular geometry and number of electron groups for sf4. give the molecular geometry and number of electron groups for
Andrei [34K]

Answer:

5 electron groups, see saw

Explanation:

During the formation of SF4, the sulfur atom usually bonds with each of four fluorine atoms where 8 of valence electrons are used. The four fluorine atoms have 3 lone pairs of electrons in its octet which will further utilize 24 valence electrons. In addition, two electrons are present as a lone pair on the sulfur atom. We can determine sulfur’s hybridization state by counting of the number of regions of electron density on sulphur (the central atom in the molecule). When bonding takes place there is a formation of 4 single bonds to sulfur and it has 1 lone pair. Looking at this, we can say that the number of regions of electron density is 5. The hybridization state is sp3d.

SF4 molecular geometry is seesaw with one pair of valence electrons. The molecule is polar. The equatorial fluorine atoms have 102° bond angles instead of the actual 120° angle. The axial fluorine atom angle is 173° instead of the actual 180° bond angle.

3 0
2 years ago
"An increase in the price of gasoline will increase the demand for hybrid vehicles." This statement is an example of a positive
-Dominant- [34]

Answer:

True

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This is because the statement above fits the definition of a positive economic statement. A Positive economic statement refers to objective statements that can be verified, tested , amended or discarded by consulting available evidence .The statement above can be tested objectively to establish its veracity.

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Products are AgBr and KNO3

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