'Mass reactants mass products' presentation slideshows

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Chapter 3

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Dr. Bill Pezzaglia Nuclear Physics

1. Modern Physics Series. Dr. Bill Pezzaglia Nuclear Physics. Updated: 2010May17. INCOMPLETE DRAFT. 2. Nuclear Physics. A. Nuclear Structure B. Nuclear Decay C. Nuclear Reactions. 3. A. Nuclear Structure. Parts of the Atom Isotopes Nuclide Table. 4. 1. Parts of Atom.

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Law of Conservation of Mass Antoine Lavoisier, ~ 1775

Law of Conservation of Mass Antoine Lavoisier, ~ 1775. Law of Definite Proportions J.L. Proust, 1799. Law of Conservation of Mass. In a chemical reaction, the Law of Conservation of Mass states that the Mass of the Reactants must equal the Mass of the Products. C + D + E.

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U nit 1- Mass and Change Notes

U nit 1- Mass and Change Notes. What could we have measured?. Mass. What is mass? How can it be measured?. Mass and Change Lab. Goal- What happens to the mass of an object when they are changed? Part 1: Change the shape of steel wool Part 2: Melting ice Part 3: Burning steel wool

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Composition of Matter

Composition of Matter. Chap 3. Physical Properties of Matter. Characteristics observed or measured without changing the identify of a substance. Shape, physical state, odor, boiling and freezing points, density, and color of that substance. Physical Changes.

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Chemical Reactions

Chemical Reactions. Chapter 11. What is a Chemical Reaction?. The process in which atoms of one or more substances are rearranged to form new different substances. Evidence of Chemical Reactions. Temperature change (hot or cold) Light Color change Odor Gas bubbles Appearance of solids.

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Chp 3 Matter

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Nuclear Reactions & Difference of Nuclear and Chemical Reactions

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Changes in Matter

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Balancing Equations:

Balancing Equations:. Law of Conservation of Mass. Law of Conservation of Mass:. Mass is neither created nor destroyed during a chemical reaction- it is conserved Mass reactants = Mass products. Chemical Equations/ Law of Conservation of Mass.

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Mass Reactants = Mass Products

Mass Reactants = Mass Products. Law of Conservation of Mass: the mass of the reactants must equal the mass of the products. Law of Definite Proportions : a compound ( like H 2 O ) is always composed of the same elements in the same proportion by mass (no matter what the sample size).

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Balancing Equations

Balancing Equations. The Law of Conservation of Mass/Matter states that whenever matter changes, mass/matter cannot be created or destroyed. So this means that the mass before the reaction has to be the same as the mass after the reaction. (mass reactants = mass products).

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