Classify each as a physical change or a chemical change.a. breaking a pencil in twob. water freezing and forming icec. frying an eggd. burning woode. leaves changing colors in the fall
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.
Classify each as a physical change or a chemical change.
a. breaking a pencil in two
b. water freezing and forming ice
c. frying an egg
d. burning wood
e. leaves changing colors in the fall
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