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Anestetic [448]
3 years ago
15

Starting with calcium chloride describe how one can prepare calcium carbonate​

Chemistry
1 answer:
Dima020 [189]3 years ago
8 0
I have no idea I’m sorry I’m doing a test and need to put a question
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An Amount of carbon – 12 Atoms equal to Avogadro‘s number would have a mass of exactly
mamaluj [8]

Explanation:

the answer is C12 grams

5 0
3 years ago
How much heat is released as the temperature of 465 g of water drops from 75.0°C to 18.2°C?
Aleks [24]

The heat released : -110560.632 J

<h3>Further explanation</h3>

Heat can be calculated using the formula:  

Q = mc∆T  

Q = heat, J  

m = mass, g  

c = specific heat, joules / g ° C  

∆T = temperature difference, ° C / K  

<h3>Known</h3>

m =465 g

c water = 4.186 J/gram °C

∆T = temperature difference = 18.2 - 75 = - 56.8 °C

Then the heat :

\tt Q=m.c.\Delta T\\\\Q=465\times 4.186\times -56.8\\\\Q=\boxed{\bold{-110560.632~J}}\rightarrow -=exothermic

3 0
3 years ago
Which type of radioactive particle(s) has/have been emitted in the following equation?
Nikitich [7]
Notice the subscript went from 83 to 84 and the 214 stayed the same that means it was beta decay.
8 0
3 years ago
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Which is the correct way to write 602,200,000,000,000,000,000,000 in scientific notation
serious [3.7K]
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I answered this already :)
4 0
3 years ago
How do atoms combine to form extended structure?
wariber [46]

Answer:

lose or share electrons in such a way that the outer shells become chemically complete

Explanation:

Most interactions among atoms take place in the outermost shell of each atom. The number of each electron in this shell determines how an atom combines with other atoms to form compounds. When atoms combine they gain, lose or share electrons in such a way that the outer shells become chemically complete.

4 0
3 years ago
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