3 years ago

Match the change to its definition.

1 answer:

5 0

<h3>Answer:</h3><h3 /><h3>I didnt understand you have already done it perfect </h3>

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What is the formula for calcium chloride? Ca2Cl CaCl CaCl2 CaCl3

djyliett [7]

Hello there, and thank you for asking your question here on brainly.

The answer to this is Answer choice C: CaCl2

Hope this helped you! ♥

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3 years ago

Read 2 more answers

The summary or ending of your experiment

Katyanochek1 [597]

Answer:

Conclusion

Explanation:

I believe you were asking for the term that best matches with the description given. Typically the conclusion summarizes your experiment in a 1 to 2 paragraph format.

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3 years ago

7. A gas ______.

enot [183]

Answer:

Explanation:

A gas is a state of matter that has no fixed shape and no fixed volume gases have lower density than other states of matter such as solids and liquids.

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3 years ago

Which atom has the least attraction for the electrons in a bond between that atom and an atom of hydrogen?

Helga [31]

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3 years ago

Calculate the molar solubility of CaF2 at 25°C in a solution that is 0.010 M in Ca(NO3)2. The Ksp for CaF2 is 3.9 x 10-11.

madreJ [45]

Answer:

$Molar \ solubility=3.12x10^{-5}M$

Explanation:

Hello,

In this case, for the dissociation of calcium fluoride:

$CaF_2(s)\rightleftharpoons Ca^{2+}+2F^-$

The equilibrium expression is:

$Ksp=[Ca^{2+}][F^-]^2$

In such a way, via the ICE procedure, including an initial concentration of calcium of 0.01 M (due to the calcium nitrate solution), the reaction extent $x$ is computed as follows:

$3.9x10^{-11}=(0.01+x)(2*x)^2\\\\x=0.0000312M$

Thus, the molar solubility equals the reaction extent $x$ , therefore:

$Molar \ solubility=3.12x10^{-5}M$

Regards.

4 0

3 years ago