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2 years ago

Write the balanced nuclear equation for the alpha decay of thorium-232.

Chemistry

1 answer:

nydimaria [60]2 years ago

5 0

Answer:

I'm so sorry I would love to help you but I have no idea

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Is dilution directly or indirectly related to Molarity??

Elis [28]

Answer: directly

Explanation: yes

8 0

3 years ago

ZILLDIFFEQMODAP11 3.1.021. My Notes Ask Your Teacher A tank contains 150 liters of fluid in which 10 grams of salt is dissolved.

SSSSS [86.1K]

Answer:

Therefore, the number of grams of salt in the tank at time t is $A(t) = 150-140 e^{-\frac{t}{30} }$

Explanation:

Given:

Tank A contain $V_{1} = 150$ lit

Rate $\alpha = 5 \frac{L}{min}$

Dissolved salt $A = 10$ gm

Salt pumped in one minute is $4 \frac{L}{min}$

Salt pumped out is $\frac{5L}{150L} = \frac{1}{30}$ of initial amount added salt.

To find $A(t)$

$\frac{dA}{dt} = Rate _{in} - Rate _{out}$

$A' = 5 - \frac{A}{30}$

$A' + \frac{A}{30} = 5$

Solving above equation,

$I .F = e^{\int\limits {p} \, dt }$

$y = e^{\int\limits {\frac{1}{30} } \, dt }$

$y = e^{\frac{t}{30} }$

$(Ae^{\frac{t}{30} } )' = 5 e^{\frac{t}{30} } + c$

Integrating on both side,

$Ae^{\frac{t}{30} } = 5 \times 30 e^{\frac{t}{30} } +c$

Add $e^{-\frac{t}{30} }$ on above equation,

$A = 150 + ce^{-\frac{t}{30} }$

Here given in question, $A(t=0) = 10$

$10 =150 +c$

$c = -140$

Put value of constant in above equation, and find the number of grams of salt in the tank at time t.

$A(t) = 150-140 e^{-\frac{t}{30} }$

Therefore, the number of grams of salt in the tank at time t is $A(t) = 150-140 e^{-\frac{t}{30} }$

7 0

3 years ago

Which items in this image are electrically conductive? Check all that apply.

erma4kov [3.2K]

A, the power lines are what actually conducts (Or moves) the power.
It is NOT B or E, because wood is a terrible conductor. This is the reason it is used in homes, to make the heat, (Which is Electricity) stay inside, rather than letting it all pass through.
It is NOT C, because rubber, again, is a horrible conductor. Like wood, it is what we call an insulator, because it does not conduct heat. (or electricity) This is why we wear rubber gloves when doing electrical work.
D is an acceptable answer- Most metals are very good conductors of electricity. For example, have you ever seen a copper pan? It cooks very well, because copper is a very good conductor. Copper is a metal. This is why wire cutters have rubber handles, because the metal's conductivity could electrify the person holding it. The rubber, as I explained before, acts as a "Shield," keeping the person from getting electrocuted when cutting wires or working with electricity.

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3 years ago

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Hello,

Ulleksa [173]

Answer:

In talc preparation, it is used during the filtration process and also acts as a distribution agent. When it is added to the dill water, it combines with all other compounds present in the substance and leaves the water alone. In this way, it acts as a filtering agent.

Explanation:

it has already been answered

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3 years ago

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can someone pls tell me if this is correct? and also if possible, pls explain the difference between fractional and simple disti

Ipatiy [6.2K]

Explanation:

everything can be found in the picture

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3 years ago