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Crank
3 years ago
14

Write a balanced equation for the dissolution of CaCO3? lable all phases too... So far I have CaCO3(aq)<-->Ca^2+(aq)+CO3^2

-(aq) but that is wrong. Please help!!
Chemistry
1 answer:
djverab [1.8K]3 years ago
6 0
Perhaps you need the reaction between CaCO_3 and HCl:

CaCO_3 + 2HCl\ \to\ CaCl_2 + CO_2 + H_2
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Explain why the dissolved component does not settle out of a solution
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3 years ago
How many moles of \ce{Fe2O3}FeX 2 ​ OX 3 ​ will be produced from 27.0 \text{ g}27.0 g27, point, 0, start text, space, g, end tex
ira [324]

Answer : The number of moles of Fe_2O_3  produced will be, 0.241 moles.

Solution : Given,

Mass of Fe = 27.0 g

Molar mass of Fe = 56 g/mole

First we have to calculate the moles of Fe.

\text{ Moles of }Fe=\frac{\text{ Mass of }Fe}{\text{ Molar mass of }Fe}=\frac{27.0g}{56g/mole}=0.482moles

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The balanced chemical reaction is,

4Fe+3O_2\rightarrow 2Fe_2O_3

From the reaction, we conclude that

As, 4 mole of Fe react to give 2 mole of Fe_2O_3

So, 0.482 moles of Fe react to give \frac{0.482}{4}\times 2=0.241 moles of Fe_2O_3

Thus, the number of moles of Fe_2O_3  produced will be, 0.241 moles.

6 0
3 years ago
You have a big block of ice you chip off a small chunk which has more thermal energy?
gayaneshka [121]
I think ita c sense its the same object
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3 years ago
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Answer:

482

Explanation:

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3 years ago
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1) According to Bohr's model of the atom, in which orbitals do electrons have the most energy?
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3 years ago
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