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Gnesinka [82]
3 years ago
13

Select the correct answer. Which statement best describes how chemical equations demonstrate conservation of mass? O A. The numb

er of reactants is the same as the number of products. O B. The compounds are the same on each side of the reaction. O c. The number of atoms of each element is the same on each side of the equation. OD. The state of matter is the same on each side of the equation.
Note:
No need to explain.​
Chemistry
2 answers:
skad [1K]3 years ago
8 0

Answer:

Option D

Hope it helps you

noname [10]3 years ago
7 0

Answer:

Option C )The number of atoms of each element is the same on each side of the equation.

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T, F, T, T, F



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3 years ago
In the reaction C + O2 → CO2, 18 g of carbon react with oxygen to produce 72 g of carbon dioxide. What mass of oxygen would be n
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Answer:

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Explanation:

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Solution:

Chemical reaction:

C + O₂     →       CO₂

according to law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

This law was given by French chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

In given photosynthesis reaction:

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there are six carbon atoms, eighteen oxygen atoms and twelve hydrogen atoms on the both side of equation so this reaction followed the law of conservation of mass.

In a similar way,

C   +    O₂     →       CO₂

18 g +   X      = 72

X = 72 -18

X = 54 g

Thus, 54 g of O₂ are required.

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3 years ago
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Explanation:

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