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Chemistry

How do I know the difference between physical and chemical changes?

Living By Chemistry: First Edition Textbook

1st Edition

ISBN:9781559539418

Author:Angelica Stacy

Publisher:Angelica Stacy

ChapterU4: Toxins: Stoichiometry, Solution Chemistry, And Acids And Bases

SectionU4.3: Spare Change: Physical Versus Chemical Change

Problem 1E

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Concept explainers

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.

Question

How do I know the difference between physical and chemical changes?

Expert Solution

Step 1

that affects the chewical properties of
The
he change
a substane is known as chemical cha ostance is
that affects ei tuei state
known as
or form of a sube ange
physical changes

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