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stira [4]
3 years ago
7

Kim described two subatomic particles below:

Chemistry
2 answers:
SashulF [63]3 years ago
4 0

Answer:

Was it right

Explanation:

Airida [17]3 years ago
3 0
I agree with him I also think it is #2 but it's hard to explain, it just makes more sence...
hope this helps!
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How much is the chemotherapy in FeS2?explain
SVETLANKA909090 [29]

Answer:

Valence of iron in FeS2

Let the valency of iron be x

x+2(oxidation number of Sulphur)=0 as their is no charge on FeS2

As sulphur belongs to Group VI (chalcogens) so the valency/oxidation number of Sulphur is -2

x+2(-2)=0

x-4=0

x=4

So the valency/oxidation number of iron in FeS2 is +4

Explanation:

Hope it will help you monkey ^_^ it's crab

6 0
4 years ago
Read 2 more answers
g What are the relative rates of diffusion of the three naturally occurring isotopes of krypton, 80Kr80Kr , 82Kr82Kr, and 83Kr83
emmasim [6.3K]

Solution :

According to the Graham's law of diffusion, we know that, the rate of the diffusion varies inversely to the molar mass of the gas, i.e.

Rate of diffusion, $r_d = \frac{a}{\sqrt M}$

where, the 'M' is the molar mass of the gas.

Now in the case of the isotopes of the Krypton,

Atomic mass of $^{80}Kr$ = 80 AMU

Atomic mass of $^{82}Kr$ = 82 AMU

Atomic mass of $^{83}Kr$ = 83 AMU

So the ratio of the rate of diffusion of the three isotopes are :

$M_{d,^{80}Kr}:M_{d,^{82}Kr}:M_{d,^{83}Kr}$

$=\frac{1}{\sqrt{80}}:\frac{1}{\sqrt{82}}:\frac{1}{\sqrt{83}}$

$=0.1118:0.1104:0.10976$

Dividing the above three with the smallest number among the three i.e. 0.10976, we get the relative rates of diffusion.

∴ $M_{d,^{80}Kr}:M_{d,^{82}Kr}:M_{d,^{83}Kr}$

 = 1.02 : 1.01 : 1

Hence the relative rate of diffusion are :

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3 years ago
Why the liquid with median density floats where it does . ?
WARRIOR [948]
Because it is less is equal dense to the water or liqiud density

6 0
3 years ago
Answer will mark bl plz
lesya692 [45]

Answer:

A

Explanation:

The mallet transfers kinetic energy, then that energy is transferred to the orange ball, then the purple ball, thus making the purple ball move

3 0
4 years ago
Electrons =28 so what is the element
maksim [4K]

Answer:

Nickel is the answer

Explanation:

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