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lawyer [7]
3 years ago
5

Explain what is the process of combustion?

Chemistry
1 answer:
Vesnalui [34]3 years ago
8 0

Answer: Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives off heat.

Explanation: When a hydrogen-carbon-based fuel (like gasoline) burns, the exhaust includes water (hydrogen + oxygen) and carbon dioxide (carbon + oxygen).

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A student heats 10.52 g of sodium hydrogen carbonate in a crucible until the compound completely decomposes to sodium carbonate
saveliy_v [14]

Answer:

m_{Na_2CO_3}^{theoretical}=6.636gNa_2CO_3

Explanation:

Hello!

In this case, since the decomposition of sodium hydrogen carbonate is:

2NaHCO_3(s)\rightarrow Na_2CO_3(s)+H_2O(g)+CO_2(g)

Thus, since there is a 2:1 mole ratio between the sodium hydrogen carbonate and sodium carbonate, and the molar masses are 84.01 and 105.99 g/mol respectively, we obtain the following theoretical yield:

m_{Na_2CO_3}^{theoretical}=10.52gNaHCO_3*\frac{1molNaHCO_3}{84.01gNaHCO_3}*\frac{1molNa_2CO_3}{2molNaHCO_3}  *\frac{105.99gNa_2CO_3}{1molNa_2CO_3}\\\\ m_{Na_2CO_3}^{theoretical}=6.636gNa_2CO_3

Best regards!

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3 years ago
In a balanced chemical reaction, the number of atoms of each element in the product(s) always equals the
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Can you use active transport in a sentence
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Active transport is the moving of molecules across the membrane of the cell against the concentration gradient with the use of ATP.

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Radiation refers to energetic waves and particles emitted by a radioactive source. Which of the following electromagnetic waves
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