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padilas [110]
3 years ago
15

Cuales son los cambios que siempre envuelven cambios en la compocision de la sustancia?

Chemistry
1 answer:
QveST [7]3 years ago
3 0

I already answered this question in Spanish language. Now I answer in English.


Answer: the chemical changes.


Explanation:


We understand by composition of a substance to the proportion (ratio or percentage) of each element (type of atoms) that makes up the same, as well as the way in which these elements are linked (chemical bonds).


A chemical change is a process, also called a chemical reaction, in which one or more substances are converted into different substances.


The resulting substances are different because their composition is different, since some chemical bonds have been broken and others have been formed, giving rise to a new structure. The chemical formula of each compound product of the chemical change will present a different combination of atoms, in ratio or structure.

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4 years ago
Which would be the nobel gas preceding Tin?
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6 0
3 years ago
Time (sec) [CH4] (mol/L)
Oxana [17]

Based on the table and the equation of reaction; the

  • rate of consumption of oxygen between time 20 and 40s is 0.005 M/s
  • rate of consumption of oxygen between time 40 and 60s is 0.0025 M/s

<h3>What is rate of a reaction?</h3>

The rate of a reaction is the rate at which reactants molecules are consumed or products are formed.

  • Rate of reaction = change in concentration of reactants or products/ time taken

Based on the equation of reaction, the rate of consumption of oxygen is equal to the rate of consumption of methane.

Thus. rate of consumption of oxygen from time 20 seconds to time 60 seconds is calculated as follows:

Rate between 20 and 40 = 1.0 - 0.9/20

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Rate between 40 and 60 = 0.9 - 0.85/20

  • Rate of consumption of oxygen = 0.0025 M/s

Therefore, the rate of consumption of oxygen decreases with time.

Learn more about rate of reaction at: brainly.com/question/25724512

8 0
3 years ago
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