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2 years ago

Which represents the balanced equation for the beta minus emission of phosphorus-32?

Chemistry

2 answers:

Agata [3.3K]2 years ago

8 0

Answer: The correct option is C.

Explanation: Beta minus ( $\beta ^-$ ) decay is the decay in which a neutron is converted into proton and releases beta particle or generally known as electron.

There is an increase in the Atomic number because one protons is being formed.

In the case of beta-minus decay of phosphorous, the P-nucleus gets changed to Sulfur nucleus. The balanced Chemical equation for this process is:

$^{32}_{15}\textrm{P}\rightarrow ^{32}_{16}\textrm{S}+^0_{-1}\beta$

Hence, the correct option is C.

uranmaximum [27]2 years ago

3 0

Answer : Option C) $P^{32}_{15} ---> S^{32}_{16} +e^ {0}_{-1}$

Explanation : The balanced equation for the beta minus decay for emission of Phosphorus-32 is $P^{32}_{15} ---> S^{32}_{16} +e^ {0}_{-1}$

Where, it is clearly seen that in the beta minus emission a neutron decays into a proton, an electron, and an anti-neutrino.

So, in the phosphorus-32 beta minus decay the product is sulfur-32 along with an electron created from the anti-neutrino.

Therefore, option C is the correct option.

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Calculate the adjusted retention times for both pentafluorobenzene and benzene if the elution time for unretained solute is 1.06

vovangra [49]

Answer:

Pentafluorobenzene: 11,92 min

Benzene: 12,14 min

Explanation:

Retention time of pentafluorobenzene is 12,98 min and 13,20 min of benzene.

The adjusted retention time is the time an analyte spends in the column not the stationary phase. As time of unretained solute is 1,06 min the adjusted retention time for an analyte is:

tr' = tr - 1,06min

For pentafluorobenzene:

tr' = 12,98min - 1,06min = 11,92 min

For benzene:

tr' = 13,20 - 1,06min = 12,14 min

I hope it helps!

3 0

2 years ago

KClO3 ---> KCl + O2 Balance the decomposition chemical reaction. A) KClO3 ---> KCl + O2 B) 2KClO3 ---> KCl + 3O2 C) 2KC

Damm [24]

And the answer is C.

5 0

2 years ago

600.0 mL of air is at 20.0 c what is the volume at 60.0

pogonyaev

682mL

Explanation:

Given parameters:

Initial volume of air = 600mL

Initial temperature = 20°C

Final temperature = 60°C

Unknown:

Final volume = ?

Solution:

To solve this problem, we apply Charles's law';

Charles's law states that "at constant pressure, the volume of a given mass of gas is directly proportional to its temperature. "

Mathematically;

$\frac{V_{1} }{T_{1} } = \frac{V_{2} }{T_{2} }$

V₁ is the initial volume of air

T₁ is the initial temperature of air

V₂ is the final volume of air

T₂ is the final temperature of air

To proceed in solving this problem, we need to convert the given temperature to Kelvin;

T K = 273 + T°C

T₁ = 273 + 20 = 293K

T₂ = 273 + 60 = 333K

now input the parameters;

$V_{2} = \frac{V_{1} }{T_{1} } x T_{2} = \frac{600}{293 } x 333$

V₂ = 682mL

learn more:

Gas laws brainly.com/question/2438000

#learnwithBrainly

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2 years ago

A double-blind study is one in which neither the researchers nor the subjects know wether the subject is receiving the real trea

TEA [102]

Answer:

A. Neither the subjects nor the researchers can bias the results.

Explanation:

As described, a double- blind study is one in which the researcher and his study does not know the person receiving the actual treatment.

Researchers can be bias in their studies as they seek to establish and fine tune results in the way the best favors them. A double-blind study helps to bridge this gap to prevent bias that might be introduced into an experimental set up or while interpreting results.

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Which change does not increase the speed of reaction between zinc and hydrochloric acid?

Mademuasel [1]

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