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STALIN [3.7K]
3 years ago
9

Which property of matter is conserved in chemical reactions and shown by balanced equations? mass volume density shape

Chemistry
2 answers:
zloy xaker [14]3 years ago
6 0

Answer:

A. mass

Explanation:

On edgenuity 2020

den301095 [7]3 years ago
3 0

Answer:mass

Explanation:

I took the quiz

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When 1.50 g of ba(s) is added to 100.00 g of water in a container open to the atmosphere, the reaction shown below occurs and th
damaskus [11]

<u>Given:</u>

Mass of Ba = 1.50 g

Mass of H2O = 100.0 g

Initial temp T1 = 22 C

Final Temp T2 = 33.1 C

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<u>To determine:</u>

The reaction enthalpy

<u>Explanation:</u>

The heat released during the reaction is:

q = - mc(T2-T1) = - (100+1.5) g *4.18 J/g C * (33.1-22) C = -4709.4 J

# moles of Ba = Mass of Ba/Atomic mass of Ba = 1.5 g/137 g.mol-1 = 0.0109 moles

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Ans : The enthalpy change for the reaction is -432 kJ/mol


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3 years ago
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Which best describes accuracy?
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