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Wish Lay
Wish Lay
Asked: August 23, 20212021-08-23T08:13:52+05:30 2021-08-23T08:13:52+05:30In: Education and learning

Which of the following statements is true?

Which of the following statements is true?
A) The total mass of the system remains same in a chemical change
B) A chemical change is permanent and irreversible
C) A physical change is temporary and reversible
D) All of the above

chemical changemass
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    1. Anonymous
      2021-08-23T08:21:48+05:30Added an answer on August 23, 2021 at 8:21 am

      Answer: The correct option is D) All the above

      A chemical reaction incorporates the presence of two substances. A reaction is an irreversible change in the physical or chemical state of matter, where one substance is transformed into another.

      A reaction involves two substances: a catalyst and a substance(s). A catalyst is usually an element that accelerates the reactions at the molecular level. A substance is usually essential to increase its reactivity (e.g., catalysts, acids, bases, metals). This difference can be used to our advantage as we can make change without having to worry about what should be done first and what should be done last.

      The idea of chemical change and irreversible has been the subject of discussions in chemistry for many years. It is widely accepted that a chemical reaction is irreversible.

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