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Solution: Which of the following statements describe
Chapter 1, Problem 1.54(choose chapter or problem)
Which of the following statements describe physical properties and which describe chemical properties? (a) Iron has a tendency to rust. (b) Rainwater in industrialized regions tends to be acidic. (c) Hemoglobin molecules have a red color. (d) When a glass of water is left out in the sun, the water gradually disappears. (e) Carbon dioxide in air is converted to more complex molecules by plants during photosynthesis.
Questions & Answers
QUESTION:
Which of the following statements describe physical properties and which describe chemical properties? (a) Iron has a tendency to rust. (b) Rainwater in industrialized regions tends to be acidic. (c) Hemoglobin molecules have a red color. (d) When a glass of water is left out in the sun, the water gradually disappears. (e) Carbon dioxide in air is converted to more complex molecules by plants during photosynthesis.
ANSWER:Step 1 of 6
Physical properties:
Observed and measured without changing the chemical identity of the sample.
Example: Color , length and volume.
Chemical properties:
Observed and measured as a sample changes chemical identity.
Example: Acidity, reactivity.