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4 years ago

An element that is likely to have this property is; A. bromine B. carbon C. sodium D. tellurium ?

Chemistry

2 answers:

Ann [662]4 years ago

5 0

I really would go with D, i think that would be the correct answer!
hope that this helps you, Good-bye! =)

vladimir2022 [97]4 years ago

4 0

The answer is D. Most common semiconducting materials are crystalline solids. A<span>morphous and liquid semiconductors are also known to be.</span>

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The decomposition of hydrogen peroxide follows first order kinetics and has a rate constant of 2.54 x 10-4 s-1 at a certain temp

Eva8 [605]

Answer:

$[A]_0=0.400M$

Explanation:

Hello.

In this case, since the first-order reaction is said to be linearly related to the rate of reaction:

$r=-k[A]$

Whereas [A] is the concentration of hydrogen peroxide, when writing it as a differential equation we have:

$\frac{d[A]}{dt} =-k[A]$

Which integrated is:

$ln(\frac{[A]}{[A]_0} )=-kt$

And we can calculate the initial concentration of the hydrogen peroxide as follows:

$[A]_0=\frac{[A]}{exp(-kt)}$

Thus, for the given data, we obtain:

$[A]_0=\frac{0.321M}{exp(-2.54x10^{-4}s^{-1}*855s)}$

$[A]_0=0.400M$

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3 years ago

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vfiekz [6]

Answer:

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Explanation:

7 0

3 years ago

Help needed ASAP, I will mark your answer as brainliest.

evablogger [386]

Answer:

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fredd [130]

Answer:

B is a precipitation reaction.

Explanation:

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Veronika [31]

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Explanation:

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