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malfutka [58]
3 years ago
9

What is atomic?................................................

Chemistry
2 answers:
ELEN [110]3 years ago
4 0

Answer:

thanx for the points

Explanation:

Pavel [41]3 years ago
3 0

Answer:

oh I'm here thanks for your points

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Calcium carbonate decomposes into calcium oxide and carbon dioxide when heated. Calculate the mass of carbon dioxide released wh
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<h2>Answer: 131.9 g</h2>

<h3>Explanation:</h3>

<u>Write a Balanced Equation for the decomposition</u>

CaCO₃     →     CaO    +    CO₂

<u></u>

<u>Find Moles of CO₂ Produced</u>

Since the mole ratio of  CaCO₃  to CO₂ is 1 to 1,

the moles of CaCO₃ = moles of CO₂

moles of CaCO₃   = mass ÷ molar mass

                             = 300 g ÷ 100.087 g/mol

                             = 2.997 moles

∴ moles of CO₂ = 2.997 moles

<u>Determine Mass of CO₂</u>

Mass = moles × molar mass

         = 2.997 mol × 44.01 g/mol

         = 131.9 g

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<h3>∴ when 300 g of calcium carbonate is decomposed, it produces 131.9 g of carbon dioxide.</h3>
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What type of spectrum is produced when electromagnetic radiation is emitted or absorbed as electrons change energy levels in an
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When electrons in atom interaction with light or photons one of the two process takes place:

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Which ion has a charge of 2-?
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A

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