Which of the following statements best describes the similarities between beryllium, magnesium,calcium, and strontium?

1 answer:

7 0

I didn't see any statements, but here are some similarities of those elements:

They all have the same number of valence electrons, they will become cations, they all will lose 2 electrons, they will behave similarly in chemical reactions, they have similar chemical properties, they all are in the alkaline earth metal family. Hope this helps! :)

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How many moles of HCl are in 30.00mL of a 0.1000M HCl solution? A. 0.003000mol. B. 300.0mol C. 0.03000mol D. 3.000mol

Katyanochek1 [597]

Given the volume of HCl solution = 30.00 mL

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Molarity, moles and volume are related by the equation:

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Converting volume of HCl from mL to L:

$30.00 mL * \frac{1 L}{1000mL}=0.030000 L$

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$0.03000 L * \frac{0.1000mol}{L}= 0.003000 mol HCl$

The final moles would be reported to 4 sig figs. So the correct answer will be 0.03000 mol HCl

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The solution is an alkali.

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In opposite, the substances with pH over 7 are called alkalis. Again, the larger the pH value is, the more alkaline it is. So pH 13 is a strong alkaline therefore it it corrosive and can clean the toilet well.

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