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speedyblackmann
01.07.2020 •
Chemistry
HELP!! ILL GIVE 20 POINTS PLUS 10 TO MOST Design a diagram, sketch, or other model to show changes in the nucleus of an atom during nuclear fission and fusion. Include a short description and a way to compare the amounts of energy released in each event. Here is an example using alpha decay.
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Ответ:
Explanation:
Inside the sun, fusion reactions take place at very high temperatures and enormous gravitational pressures
The foundation of nuclear energy is harnessing the power of atoms. Both fission and fusion are nuclear processes by which atoms are altered to create energy, but what is the difference between the two? Simply put, fission is the division of one atom into two, and fusion is the combination of two lighter atoms into a larger one. They are opposing processes, and therefore very different.
The word fission means "a splitting or breaking up into parts" (Merriam-Webster Online, www.m-w.com). Nuclear fission releases heat energy by splitting atoms. The surprising discovery that it was possible to make a nucleus divide was based on Albert Einstein’s prediction that mass could be changed into energy. In 1939, scientist began experiments, and one year later Enrico Fermi built the first nuclear reactor.
Ответ:
The balanced reaction of Hcl with oxygen gas will be
4HCl + O2 ---> 2H2O + 2Cl2(g)
Thus from balanced equation it is clear that four moles of HCl will give two moles of Cl2 gas
Or
For 2 moles of Cl2 gas we need four moles of HCl
Molar mass of HCl = 36.5 g / mole , four moles = 4 X 36.5 = 146g
Molar mass of Cl2 = 71g /mole
Hence
2 moles = 2 X 71 = 142 g
Therefore
for 142g of Cl2 we need 146g of Hcl
for one gram of Cl2 we need = 146 / 142g of HCl
For 335g of Cl2 we need = 146 X 335 / 142 = 344.4 g of HCl