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wolverine [178]
2 years ago
8

Drag the images into the correct category. Contact Forces Noncontact Forces

Chemistry
1 answer:
Nitella [24]2 years ago
8 0

Answer:

Where are the categories, we need an image for reference or something to better understand the question

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A sample in made of copper and zinc. It has a high melting point, can conduct electricity in a solid and liquid state, and is ma
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The answer is C. Only metallic alloys are malleable and ductile. The other descriptions can apply to all 3 answers
4 0
2 years ago
If 40.0 mL of a calcium nitrate solution reacts with excess potassium carbonate to yield 0.524 grams of a precipitate, what is t
tankabanditka [31]

Answer : The molarity of calcium ion on the original solution is, 0.131 M

Explanation :

The balanced chemical reaction is:

Ca(NO_3)_2+K_2CO_3\rightarrow CaCO_3+3KNO_3

When calcium nitrate react with potassium carbonate to give calcium carbonate as a precipitate and potassium nitrate.

First we have to calculate the moles of CaCO_3

\text{Moles of }CaCO_3=\frac{\text{Mass of }CaCO_3}{\text{Molar mass of }CaCO_3}

Given:

Mass of CaCO_3 = 0.524 g

Molar mass of CaCO_3 = 100 g/mol

\text{Moles of }CaCO_3=\frac{0.524}{100g/mol}=0.00524mol

Now we have to calculate the concentration of CaCO_3

\text{Concentration of }CaCO_3=\frac{\text{Moles of }CaCO_3}{\text{Volume of solution}}=\frac{0.00524mol}{0.040L}=0.131M

Now we have to calculate the concentration of calcium ion.

As, calcium carbonate dissociate to give calcium ion and carbonate ion.

CaCO_3\rightarrow Ca^{2+}+CO_3^{2-}

So,

Concentration of calcium ion = Concentration of CaCO_3 = 0.131 M

Thus, the concentration or molarity of calcium ion on the original solution is, 0.131 M

4 0
3 years ago
What is the mass of 5.84 × 10^21 atoms of xenon?
podryga [215]

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5.84e+21

Explanation:

8 0
3 years ago
What prefix should be used to name a hydrocarbon that has a six-carbon parent chain?a.hex- b.meth- c.non- d.sept-
liberstina [14]
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3 years ago
My mom is making SPAGET
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yes

Explanation:

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3 years ago
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