3 years ago

Write the electron configuration for Gold

Chemistry

1 answer:

Debora [2.8K]3 years ago

6 0

Answer:

[Xe] 4f145d106s1

Explanation:

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If a given aqueous solution at 298 K contains [H+] = 1.0 × 10-9, what is the [OH-]?

Zinaida [17]

Answer:

Explanation:

$\frac{1x10}x^{-14} = 1x10^{-9} \\ x =1x10^{-5} \\\\[OH][H]= 1x10^{-14}$

The concetration can be found by dividing the water ph constant by the [H=] or [OH] to find the other

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3 years ago

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Leni [432]

Answer:

Copper = 2 Boron = 12 (copper and boron combined = 14)

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The answer is: 0.78g

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3 years ago

Which of the following is a primary source?

bulgar [2K]

Answer:

I think its C a scientific journal article

Explanation:

Any kind of journal is considered a primary source because journals contain info that the original author wrote. Encyclopedias are considered teritary sources, but im not sure if that counts ...so id go with journals.

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3 years ago

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Is a burning log an exothermic or endothermic event if the log is the system?

denpristay [2]

It would be endothermic because the log is in the system.

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