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egoroff_w [7]
3 years ago
13

How much energy is needed to heat 2.00g of carbon from 50.0 degrees Celsius to 80.0 degrees Celsius If carbon specific heat capa

city is 0.710 J/g degrees Celsius?
Is it..

A. 113.6 J
B. 184.6 J
C. 71.0 J
D. 42.6 J
Chemistry
1 answer:
Sedaia [141]3 years ago
7 0

Answer:

huhuhuhuhuhuhuhhihihihuhuhuhjgjfngnvnffv 42.6j

Explanation:

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Need help FAST! Will rate 5
evablogger [386]

If 28.4 g of HgO decomposes and produces 2.0 g of oxygen, then 26 grams of Hg is produced.

<h3>What is decomposition reaction?</h3>

Decomposition reactions occur when complex chemical entities split apart into smaller components. Decomposition reactions often demand energy input.

There are three different kinds of breakdown reactions: thermal, photolytic, and electrolytic.

Mass_{reactant = Mass_{product}

Mass_{mercury oxide = Mass_{mercury} + mass_{oxygen}

28g =        mass_{mercury} + 2g

   mass_{mercury} = 26g

Thus, 28.4 g of HgO decomposes and produces 2.0 g of oxygen, then 26 grams of Hg is produced.

percentage mass_{mercury} = \frac{mass_{mercury}}{mass_{mercury}oxide}  X 100%

= 26g/28g

= 93%

thus  93% is the percent by mass of Hg present in HgO.

To learn more about Decomposition reaction, refer to the below link:

brainly.com/question/14112196

# SPJ1

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How many moles of water are needed to produce 56.8 g C2H2?
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Vc BFF CFC. They. We’d 577755345
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How many pairs are shared between the nitrogen atoms for hydrazine
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