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3 years ago

Acetaldehyde is a substance commonly used in chemical factories. It is often produced by

1 answer:

5 0

There are 48 hydrogen atoms, 24 carbon atoms, and 12 oxygen atoms, also 12 molecules of acetaldehyde were produced in the reaction.

The equation of the reaction is;

12C2H4 + 6O2 ------> 12 CH3CHO

In order to approach this problem, the balanced reaction equation is the first step. There are 12 ethylene molecules and six oxygen molecules. These will combine as shown.

There number of atoms involved are as follows;

H = 48

C = 24

O = 12

There are 12 molecules of acetaldehyde produced in the reaction.

Learn more: brainly.com/question/9743981

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Quiz. Formula Weight and % Composition

astraxan [27]

Answer:

#1- the percentage is 2.77%

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3 years ago

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natka813 [3]

A catalyst is a substance that speeds up a chemical reaction.

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3 years ago

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Ammonia is produced by the Haber process. The equation is shown.

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Answer:

option D

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Increasing the temperature increases the yield of ammonia and speeds up the reaction as chemical reaction is affected by temperature.

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2 years ago

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inna [77]

Answer:

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2 years ago

The thallium Subscript 81 Superscript 208 Baseline Tl nucleus is radioactive, with a half-life of 3.053 min. At a given instant,

Genrish500 [490]

Answer: (E) 300 bq

Explanation:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

Radioactive decay process is a type of process in which a less stable nuclei decomposes to a stable nuclei by releasing some radiations or particles like alpha, beta particles or gamma-radiations. The radioactive decay follows first order kinetics.

Half life is represented by $t_{\frac{1}{2}$

Half life of Thallium-208 = 3.053 min

Thus after 9 minutes , three half lives will be passed, after ist half life, the activity would be reduced to half of original i.e. $\frac{2400}{2}=1200$ , after second half life, the activity would be reduced to half of 1200 i.e. $\frac{1200}{2}=600$ , and after third half life, the activity would be reduced to half of 600 i.e. $\frac{600}{2}=300$ ,

Thus the activity 9 minutes later is 300 bq.

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3 years ago