3668502
9780792245834
The student will learn to identify chemical changes and the signs that they have occurred. Introduces how to distinguish between physical and chemical changes, and the concept that chemical reactions involve changes in energy. Identifies factors that affect reaction rate. Explains the role of enzymes in chemical reactions. Describes the importance of chemical reactions in daily life.Johnson, Rebecca L. is the author of 'Chemical Changes', published 0000 under ISBN 9780792245834 and ISBN 0792245830.
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