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trapecia [35]
4 years ago
7

The Earth's mantle is

Chemistry
1 answer:
EleoNora [17]4 years ago
5 0

Answer:

C. cooler than both the crust and the core

Explanation:

It is observed that at the mantle, temperatures range from estimatedly 200 °C (392 °F) around the upper boundary with the crust to approximately 4,000 °C (7,230 °F) at the core-mantle boundary.

So we can say the mantle is cooler than both the crust and the core.

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pOH = 0.3

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As KOH is a strong base, the molar concentration of OH⁻ is equal to the molar concentration of the solution. That means that in this case:

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With that information in mind we can<u> calculate the pOH </u>by using the following formula:

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Sterling silver contains silver and copper metals. if a sterling silver chain contains 22.2 g of silver and 1.80 g of copper, wh
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