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JulijaS [17]
3 years ago
5

Identify the missing coefficient in the balanced equation and classify the type of reaction. Al2(CO3)3 ⟶ Al2O3 + ___CO2

Chemistry
2 answers:
ludmilkaskok [199]3 years ago
5 0

I think the answer is 1; Decomposition.

PSYCHO15rus [73]3 years ago
3 0

Al2(CO3)3 -> Al2CO3 -> 3CO2

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PtichkaEL [24]

Answer:

Explanation:

The net force on electron is electrostatic force between electron and proton in the nucleus .

Fc = \frac{1}{4\pi\epsilon} \times \frac{e\times e}{r^2}

This provides the centripetal force for the circular path of electron around the nucleus .

Centripetal force required = \frac{m\times v^2}{r}

So

\frac{m\times v^2}{r}=\frac{1}{4\pi\epsilon} \times \frac{e\times e}{r^2}

v^2=\frac{e^2}{4\pi \epsilon m r}

v=(\frac{e^2}{4\pi \epsilon m r})^{\frac{1}{2} }

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3 years ago
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Como clasificarias la máquina de la siguiente ilustración? tijera​
Lina20 [59]

Answer:

<u><em></em></u>

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Explanation:

En vista de que  la pregunta está realizada en español, la respuesta la doy en el mismo lenguage.

La<em> palanca</em> es una máquina simple que consiste en una barra rígida que puede girar alrededor the un punto the pivote.

La forma en que functiona una palanca es que se aplica la ferza en el extremo de la barra que está más alejado del pivote. Este extremo puede desplazarse una larga distancia o arco, con una fuerza pequeña, haciendo que los puntos que están al otro lado del pivote, a una menor distancia de este, se desplacen una distancia o arco menor pero con más fuerza que la aplicada.

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Explanation: This is the EXACT sample answer from the test, just reword it if you want. ^

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3 years ago
What is the ph of a solution that has a poh of 11.24
galina1969 [7]
Always remember that pH + pOH = 14 
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pH + 11.24 = 14

Then, You move 11.24 to the other part. and moving from a part to another change the sign of the equation. And you get:
pH = 14 - 11.24 = 2.76

So, the pH of a solution that has a pOH of 11.24 is pH = 2.76

Hope this Helps :)
7 0
3 years ago
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