Chemistry, 24.09.2019 00:20 RandomLollipop
Identifying physical and chemical changes. matter has both physical and chemical properties and can undergo physical or chemical changes. physical properties are those that a substance displays without changing its composition, whereas chemical properties are evident only during a chemical change (also called a chemical reaction). in contrast, when a substance undergoes a physical change, it may change appearance, but not its composition. part a: classify each of the changes as a physical change or a chemical change. part b: classify each of the properties as a physical property or a chemical property.
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Chemistry, 22.06.2019 21:00, rah45
Which of these is an example of pseudoscience? a) predicting the time of sunrise based on data on position of earth b) predicting the date of the moon phases based on data on position of earth c) predicting eclipses based on the position of the sun and the moon d) predicting future events in a person's life based on the position of the moon
Answers: 1
Identifying physical and chemical changes. matter has both physical and chemical properties and can...
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