Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1) Mass is not created or destroyed during a chemical reaction . - known as law of conservation of mass (this is true)
2) a given chemical species always has the same type and number of atoms . - (this is true )
3) Almost all of the mass of an atom is located in the nucleus - (this is true ) protons and neutrons are located in nucleus while electrons revolve around nucleus with a very small contribution to total mass of atom
4) every atom of given element has the same number of protons - (this is true )
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