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Dissolving is best described as which of the following?
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1. Intro to General Chemistry
Physical & Chemical Changes
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Which of the following is responsible for producing light, heat, chemical, and magnetic changes?
A
Chemical reactions
B
Mixtures
C
Phase transitions
D
Physical changes
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Step 1: Understand the types of changes listed: chemical reactions, mixtures, phase transitions, and physical changes.
Step 2: Recognize that chemical reactions involve the making and breaking of chemical bonds, which can produce light, heat, chemical, and magnetic changes.
Step 3: Note that mixtures are combinations of substances without chemical bonding, so they do not inherently produce these changes.
Step 4: Understand that phase transitions (like melting or boiling) involve changes in physical state and typically involve heat but not chemical or magnetic changes.
Step 5: Realize that physical changes affect only physical properties without altering chemical composition, so they do not produce chemical or magnetic changes.
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