In 1938, Otto Hahn and Fritz Strassman discovered that uranium nuclei could spit and form smaller nuclei, or different elements.

Chemistry

2 answers:

ehidna [41]3 years ago

8 0

Bbbbbbbbbbbbbbbbbbbbbbbbbbbb

trasher [3.6K]3 years ago

4 0

Answer: I believe it’s c

Explanation:

Because during fission the atom often splits into 2+

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An airplane flies at a constant speed of 920 km/h. How long will it take the plane to travel a distance of 1150 km?

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Answer:

1.25 hours or 75 minutes or 1 hour and 15 minutes

Explanation:

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3. Which of the following sentences apply to neutrons? a. have a negative charge. b. circle around the atom nucleus. c. are the

DerKrebs [107]

Answer:

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Explanation:

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A gas of unknown identity diffuses at a rate of 155 mL/s in a diffusion apparatus in which carbon dioxide diffuses at the rate o

Ostrovityanka [42]

Answer:

19.07 g mol^-1

Explanation:

The computation of the molecular mass of the unknown gas is shown below:

As we know that

$\frac{Diffusion\ rate\ of unknown\ gas }{CO_{2}\ diffusion\ rate} = \frac{\sqrt{CO_{2\ molar\ mass}} }{\sqrt{Unknown\ gas\ molercular\ mass } }$

where,

Diffusion rate of unknown gas = 155 mL/s

CO_2 diffusion rate = 102 mL/s

CO_2 molar mass = 44 g mol^-1

Unknown gas molercualr mass = M_unknown

Now placing these values to the above formula

$\frac{155mL/s}{102mL/s} = \frac{\sqrt{44 g mol^{-1}} }{\sqrt{M_{unknown}} } \\\\ 1.519 = \frac{\sqrt{44 g mol^{-1}} }{\sqrt{M_{unknown}} } \\\\ {\sqrt{M_{unknown}} } = \frac{\sqrt{44 g mol^{-1}}}{1.519} \\\\ {\sqrt{M_{unknown}} } = \frac{44 g mol^{-1}}{(1.519)^{2}}$