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777dan777 [17]
3 years ago
6

Which of the following do you think use plasma? welding rocket engines computer chips surgery chemical analysis ozone generation

Chemistry
2 answers:
cricket20 [7]3 years ago
6 0

Welding and computer chips

timofeeve [1]3 years ago
4 0
<h3><u>Answer</u>;</h3>

Rocket engines

<h3><u>Explanation</u>;</h3>
  • <em><u>Plasma is a hot, dense ionized state similar to that inside a fusion reactor or star.</u></em>
  • Some type of rocket engine uses electrical source to transform hydrogen gas into plasma.
  • Then powerful magnets force the plasma out of the engine to propel the rocket at very high speeds of about 123,000 mph.
  • <em><u>Instead of fuel, plasma jet engines use electricity to generate electromagnetic fields. These compress and excite a gas, such as air or argon or hydrogen, into a plasma.</u></em>
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Calculate the frequency of radiation with a wavelength of 1.08 x 10^-6 m. simple explanation please​
pishuonlain [190]
C = vf
c stands for the speed of waves (which is a constant that is 3 x 10^8)
v stands for the wavelength (which is given)
f stands for frequency (what we are solving for)
3 x 10^8 = (1.08 x 10^-6)f
Divide both sides by the given wavelength
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3 years ago
Which substance is the oxidizing agent in this reaction? fe2o3+3co→2fe+3co2 express your answer as a chemical formula?
erma4kov [3.2K]
Equation is as follow,

                            Fe₂O₃  +  3 CO     →     2 Fe  +  3 CO₂

Oxidation:

                                        3 CO     →     3 CO₂

Oxidation state of C in CO is +2, and that in CO₂ is +4. So, carbon has lost 2 electrons per mole and 6 electrons per 3 moles hence,

                                 3 CO     →     3 CO₂  +  6 e⁻

Reduction:

                                    Fe₂O₃     →     2 Fe

Oxidation state of Fe in Fe₂O₃ is +3 per atom, and that in Fe is 0. So, Iron has gained 3 electrons per atom and 6 electrons per 2 atoms hence,

                                    Fe₂O₃  +  6e⁻     →     2 Fe

Result:
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Answer: ar

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