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lozanna [386]
3 years ago
9

in a nuclear power plant control rods are used to a. speed up the reaction. b. slow down the reaction. c. feed material to the r

eaction. d. stabilize the walls of the nuclear reactor.
Chemistry
2 answers:
Natali [406]3 years ago
6 0
<span>In a nuclear power plant control rods are used to:

</span><span>b. slow down the reaction.</span>
ale4655 [162]3 years ago
3 0

Answer:

speed up the reaction.

slow down the reaction.

Explanation:

Control rods are used in nuclear reactors to control the fission rate of reactions. Their compositions includes certain elements such as boron, cadmium, silver, or indium, which are capable of absorbing many neutrons without themselves fissioning.

Control rods may be inserted into a nuclear reactor core to reduce the reaction rate or withdrawn to increase it depending on the desired rate of reaction.

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PLEASE HELP ME ASAP!!! <br> I need the answer to #9. If you can show work please do.
scoundrel [369]

The correct answer would be 32/16s


7 0
3 years ago
A sample of gas occupies 300 mL at 100K. What is its volume when the
iris [78.8K]

If the temperature of the sample of gas increases to the given value, the volume also increases to 600mL.

<h3>What is Charles's law?</h3>

Charles's law states that "the volume occupied by a definite quantity of gas is directly proportional to its absolute temperature.

It is expressed as;

V₁/T₁ = V₂/T₂

Given the data in the question;

  • Initial temperature of gas T₁ = 100K
  • Initial volume of gas V₁ = 300mL
  • Final temperature T₂ = 200K
  • Final volume V₂ = ?

V₁/T₁ = V₂/T₂

V₂ = V₁T₂ / T₁

V₂ = ( 300mL × 200K ) / 100K

V₂ = 60000mLK / 100K

V₂ = 600mL

Therefore, if the temperature of the sample of gas increases to the given value, the volume also increases to 600mL.

Learn more about Charles's law here: brainly.com/question/12835309

#SPJ1

3 0
2 years ago
A 0.610 m aqueous solution of kbr has a total mass of 75.0 g. what masses of solute and solvent are present?
Drupady [299]
To determine the masses of each component, we need to know the concentration first in terms of molality which is mol per mass of solution. Assuming the density of the solution is equal to that of water we would find:

molality = 0.160 mol KBr / L ( 1 L / 1 kg solution ) = 0.160 mol KBr / kg solution

mass KBr = 0.160 mol KBr / kg solution (.0750 kg solution ) ( 119 g KBr / mol KBr ) = 1.428 g KBr

mass solvent = 75 - 1.428 = 73.572 g water
8 0
3 years ago
Match the scientific terms with their definitions.<br> Theory hypothesis fact
valentinak56 [21]
Theory - an idea to explain something, or a set of guiding principles.
hypothesis - an unproven theory or statement.
fact - something that is true or something that has occurred or has been proven correct.

^^ those are just dictionary definitions but you didn’t include anything to match em with
3 0
3 years ago
HELP ASAP when SrCl2 + Li3PO4 --&gt; Sr3(PO4)2 + Licl is correctly blnced, the coefficient in front of the Licl will be a
defon
The correct answer is 3
7 0
2 years ago
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