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slega [8]
3 years ago
10

15 POINTS!!!!!!

Chemistry
2 answers:
valentina_108 [34]3 years ago
6 0

Important discoveries from  Lavoisier who changed the field of chemistry in the late 1700s

  • 1. periodic system
  • 2. the discovery of oxygen
  • 3. the law of conservation of mass
  • 4. the importance of weighing
<h3><em>Further explanation</em></h3>

There are several important discoveries from Antoine Laurent Lavoisier who changed the field of chemistry in the late 1700s

The findings include:

  • 1. he discovered the naming of the chemical periodic system for the first time on which the naming of the modern periodic system was based
  • 2. He put forward the term "oxygen" and stated that air consists of two components namely nitrogen and oxygen.
  • And oxygen is what plays an important role in the combustion process of a substance
  • 3. He stated the law of conservation of mass.

Experiments carried out by reacting oxygen and mercury in a closed system and produce mercury oxide

And if it is heated it will again produce the same amount of oxygen and mercury

From this experiment, he stated the law that:

In a closed system, the total mass of the substance before the reaction will be equal to the total mass of the reaction product.

  • 4. Lavoisier's precision in the importance of the weighing process in chemical reactions causes an important basis in the calculation of chemistry for the progress of research in the future

<h3><em>Learn more</em></h3>

Law of conservation of mass https://brainly.in/question/4830694

application of mass conservation law brainly.com/question/6677869

the law of conservation of matter

brainly.com/question/12733091

Keywords: mass, closed system, Lavoisier, combustion, periodic system

pickupchik [31]3 years ago
4 0
He proposed the Law of Conservation of Matter, being the first to say that matter can not be created nor destroyed.
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Answer:

m_{O_2}=61.87gO_2

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Explanation:

Hello,

Considering the given reaction's stoichiometry, grams of oxygen result:

m_{O_2}=58.0gC_6H_{12}O_6*\frac{1molC_6H_{12}O_6}{180gC_6H_{12}O_6}*\frac{6molO_2}{1molC_6H_{12}O_6}*\frac{32gO_2}{1molO_2}\\m_{O_2}=61.87gO_2

Moreover, the mass of produced carbon dioxide turns out:

m_{CO_2}=58.0gC_6H_{12}O_6*\frac{1molC_6H_{12}O_6}{180gC_6H_{12}O_6}*\frac{6molCO_2}{1molC_6H_{12}O_6}*\frac{44gCO_2}{1molCO_2}\\m_{O_2}=85.07gCO_2

Best regards.

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Answer:

<h2>62,560 kg</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

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We have

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We have the final answer as

<h3>62,560 kg</h3>

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