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LenaWriter [7]
3 years ago
6

PLEASE ASNWR ASAP

Chemistry
1 answer:
Vikki [24]3 years ago
4 0
34.95 atm

lol i hope i’m not too late



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Answer the following questions:
Lynna [10]
The relationship of radiation with distance obeys the inverse square law. Therefore, doubling the distance decrease the radiation by a factor of 4. The new count is 250.
1) Applying the same principle, the count decreases by a factor of 100. The new count is 10
2) An alpha particle is 4He2 and the Hydrogen can be represented as 1H1
14N7 + 4He2 - 1H1
= 17X8
Proton number 8 belongs to Oxygen. Therefore, the resultant nucleus is:
17O8
3) 185Au79 - 4He2
= 181Ir77
4) X - 4He2 = 234Th90
X = 238U92
5) Beta emission results in the same nucleon number but an increase in the proton number; therefore, the result is:
234Pa91
7 0
3 years ago
What is the relationship between the kinetic energy of molecules in an object and the object's temperature?
Natalija [7]

Answer: as the temperature increases, the kinetic energy of the molecules increases

Explanation: The kinetic energy of the molecules is the energy possessed by virtue of motion of the particles.

Kinetic energy of the particles is directly proportional to the temperature of the gas.

K.E=\frac{3RT}{2}

where T= temperature

R= gas constant

Thus if the temperature is increased, the molecules start moving more randomly and gain kinetic energy.



8 0
3 years ago
Read 2 more answers
A sample of seawater contains 1.3g of calcium ions in 3,100kg of solution. what is the calcium ion concentration of this solutio
MakcuM [25]
Unit ppm stands for parts per million. in terms of mass, ppm is equivalent to mg/kg.
since 1 kg is 10⁻⁶ mg, 1 kg is equivalent to million mg.
therefore mg/kg is also ppm.
there are 1.3 g of Ca ions in 3100 kg
if 3100 kg contains - 1.3 g of Ca
then 1 kg contains - 1.3 g / 3100 kg
then Ca ions - 0.42 x 10⁻³ g/kg
Ca ion concentration - 0.42 mg/kg 
therefore Ca ion concentration is 0.42 ppm
8 0
3 years ago
A chemist adds two substances together in a beaker. When he combines the substances, a solid substance is formed. He filters the
aliya0001 [1]

Answer:

collecting relevant data

Explanation:

got this answer from another website ;)

7 0
2 years ago
If you assume that the tin atom is a sphere, what is the volume of a single atom
hoa [83]
Click hope this helps !!

4 0
3 years ago
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