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zhannawk [14.2K]
3 years ago
9

Which proffesion is likely to use a radiation shield?

Chemistry
2 answers:
marusya05 [52]3 years ago
7 0
Probably Geologist, due to the problem of nuclear radiation caused by reactors and bombs
Anni [7]3 years ago
5 0
My answer -

<span> The profession which uses a radiation shield is a geologist. This profession is involved in studying the solid and liquid matter in the Earth along with it are the processes and history that helped shaped it.

P.S

Happy to help you have an AWESOME!!! day ^-^
</span>
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What is the attractive force that occurs between the sun and the earth called? friction magnetism weight gravity
natima [27]
I believe the correct answer from the choices listed above is the last option. The attractive force that occurs <span>between the sun and the earth is called gravity. Hope this answers the question. Have a nice day. Feel free to ask more questions.</span>
3 0
3 years ago
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The combustion of 1.685 g of propanol (C3H7OH) increases the temperature of a bomb calorimeter from 298.00 K to 302.16 K. The he
AfilCa [17]

Answer:

ΔH =  - 2020.57 kJ/mol

Explanation:

Given that :

mass of propanol = 1.685 g

the molar molar mass = 60 g/mol

Thus; the number of  moles = mass/molar mass

= 1.685 g/60 g/mol

= 0.028 g/mol

However ;

ΔH = heat capacity C × Δ T

Given that:

The temperature increases from  298.00 K to 302.16 K.

Then ;

Δ T = 302.16 K - 298.00 K

Δ T = 4.16 K

heat capacity C = 13.60 kJ/K

∴

ΔH = 13.60 kJ/K × 4.16 K

ΔH =  56.576 kJ

The equation of the given reaction can be represented as :

C_3H_7OH_{(l)}+\dfrac{3}{2}O_{2(g)}  \to 3CO_{2(g)} +4H_2O_{(l)}

Thus for 0.028 mol of heat liberated; ΔH =  56.576 kJ

For 1 mole of heat liberated now:

ΔH =  56.576 kJ/0.028 mol

ΔH =  2020.57 kJ/mol

SInce , Heat is liberated, the reaction undergoes an exothermic reaction thus;

ΔH =  - 2020.57 kJ/mol

5 0
3 years ago
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Nitrogen makes up what percentage of the atmosphere?
Rudiy27
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What is the element present for copper
amm1812

Copper is an brown-orange color which it's atomic number is 29. With high thermal and electricity conductivity with it's smooth surface.

8 0
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pls help!!! Calculate the pH of a solution with a H+ ion concentration of 2.6 x 10^-7 and round your answer to the nearest hundr
earnstyle [38]

Answer:

6.59

Explanation:

pH=-log[H+]

=-log[2.6×10^-7]

=6.59

8 0
3 years ago
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