A. What is the passage about?
B. The passage above is an example of a text that shows compare - contrast structure.
Complete the Venn Diagram below by putting the differences inside the appropriate
circles and the similarity/similarities on the overlapping part.
Physical Change
Chemical Change
B. The passage above is an example of a text that shows compare - contrast structure.
Complete the Venn Diagram below by putting the differences inside the appropriate
circles and the similarity/similarities on the overlapping part.
Physical Change
Chemical Change
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Answer:
Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds.
Examples of Physical Change
•An ice cube melting into water in your drink.
•Freezing water to make ice cubes.
•Boiling water evaporating.
•Hot shower water turning to steam.
•Steam from the shower condensing on a mirror.
Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.
Example:
•Burning of paper and log of wood.
•Digestion of food.
•Boiling an egg.
•Chemical battery usage.
•Electroplating a metal.
•Baking a cake.
•Milk going sour
Explanation:
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