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2 years ago

6

What would happen if I throw nail polish remover into the fireplace

1 answer:

liq [111]2 years ago

7 0

Answer:

Your house could catch fire because while Nail Polish Remover itself isn't particularly flammable, the vapors it gives off are. Because of this, sparks could occur if nail polish is used near open flame or was tossed in, and then the sparks could catch onto something else and grow. I would not recommend trying this.

Explanation:

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Answer:

oxidation-reduction or redox reaction

Explanation:

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The corect answers will be:
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Be sure to answer all parts. A freshly isolated sample of 90Y was found to have an activity of 2.2 × 105 disintegrations per min

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Answer:

The half-life is $t_h = 3.856*10^{3} minute$

Explanation:

From the question we are told that

The sample is 90 Y

The first activity is $A_1 = 2.2 *10^5$ per minute

The second activity is $A_2 = 5.8 *10^3$ per minute

The duration from 1:00 p.m. on December 3, 2006 to 2:15 p.m. on December 17, 2006 is

$t = 14 \ days \ 1 hr \ 15 min$

Converting to minutes we have

$t = (14 * 24 * 60) + (1* 60) + 15$

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Where $\lambda$ is the rate constant

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$ln [\frac{5.8 * 10^{3}}{2.2 *10^{5}} ] = - \lambda * 20235$

$-3.6358 = - \lambda * 20235$

So

$\lambda = \frac{3.6358}{20235}$

$\lambda = 1.7968 *10^{-4} minute^{-1}$

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$t_{h} = \frac{0.693}{\lambda }$

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