Classify each of the following properties as physical or...

Name: Problem 9, Chapter 1: Chemistry for Today: General, Organic, and Biochemistry
Uploaded: 2021-03-05T21:38:48-08:00
Duration: 1 min 6 s
Channel: Ronald Prasad
Description: Classify each of the following properties as physical or chemical. Explain your reasoning in each case. a. Unsaturated fats are liquid at room temperature. b. Oxygen gas binds with hemoglobin. c. The metal used in artificial hip joint implants is not corroded by body fluids. d. An antacid tablet neutralizes stomach acid. e. Melanin pigment is brown in color.

Classify each of the following properties as physical or chemical. Explain your reasoning in each case. a. Unsaturated fats are liquid at room temperature. b. Oxygen gas binds with hemoglobin. c. The metal used in artificial hip joint implants is not corroded by body fluids. d. An antacid tablet neutralizes stomach acid. e. Melanin pigment is brown in color.

Classify each of the following properties as physical or chemical. Explain your reasoning in each case.
a. Unsaturated fats are liquid at room temperature.
b. Oxygen gas binds with hemoglobin.
c. The metal used in artificial hip joint implants is not corroded by body fluids.
d. An antacid tablet neutralizes stomach acid.
e. Melanin pigment is brown in color.

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Key Concepts

Chemical Properties

Chemical properties describe a substance’s potential to undergo a chemical change that alters its composition. These properties include reactivity with other chemicals, flammability, acidity or basicity, and the ability to oxidize or reduce. Unlike physical properties, chemical properties can only be observed during a chemical reaction where the substance is transformed into one or more different substances.

Classification of Changes

A key concept in this topic is distinguishing between physical and chemical changes. Physical changes involve modifications in physical appearance or state without altering the chemical composition, while chemical changes result in the formation of new products with different properties. This distinction is crucial in predicting and explaining the behavior of materials under various conditions.

Physical Properties

Physical properties are characteristics of a substance that can be observed or measured without changing the substance’s chemical identity. They include aspects such as state of matter, melting point, boiling point, color, density, texture, and solubility. When you observe these properties, you are not affecting the substance's internal chemical structure.

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