'Chemical equations' diaporamas de présentation

Chemical Reactions

Chemical Reactions. Unit 7 Part 1. Chemical Equations and Reactions. Chemical equations are used to show chemical reactions. Indicators of a Chemical Reaction Include: Change in color (unexpected) Production/release of a gas (bubbles) Change in temperature Exothermic Endothermic

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Chemical Reactions

Chemical Reactions. Section 1 Chemical Changes. A. Describing chemical reactions - change of one or more substances ?into new substances. 1. Reactants are substances that combine or change. 2. New substances that are ?produced are called products .

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Chapter 3 Stoichiometry: Calculations with Chemical Formulas and Equations

Chemistry, The Central Science , 11th edition Theodore L. Brown, H. Eugene LeMay, Jr., and Bruce E. Bursten. Chapter 3 Stoichiometry: Calculations with Chemical Formulas and Equations. John D. Bookstaver St. Charles Community College Cottleville, MO. Antoine Lavoisier.

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Chapter 3

Chapter 3. Stoichiometry. Chemical Stoichiometry. Stoichiometry - The study of quantities of materials consumed and produced in chemical reactions . Atomic Masses. Elements occur in nature as mixtures of isotopes Carbon = 98.89% 12 C 1.11% 13 C <0.01% 14 C

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Chemistry 12.1

Chemistry 12.1. 12.1. The Arithmetic of Equations.

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UNIT FOUR: Matter and its Changes

UNIT FOUR: Matter and its Changes. Chapter 12 Atoms and the Periodic Table Chapter 13 Compounds Chapter 14 Changes in Matter Chapter 15 Chemical Cycles and Climate Change. Chapter Fourteen: Changes in Matter. 14.1 Chemical Reactions 14.2 Types of Reactions

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Stoichiometry

Stoichiometry. Chocolate Chip Cookies!!. 1 cup butter 1/2 cup white sugar 1 cup packed brown sugar 1 teaspoon vanilla extract 2 eggs 2 1/2 cups all-purpose flour 1 teaspoon baking soda 1 teaspoon salt 2 cups semisweet chocolate chips Makes 3 dozen.

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UNIT FOUR: Matter and its Changes

UNIT FOUR: Matter and its Changes. Chapter 12 Atoms and the Periodic Table Chapter 13 Compounds Chapter 14 Changes in Matter Chapter 15 Chemical Cycles and Climate Change. Chapter Fourteen: Changes in Matter. 14.1 Chemical Reactions 14.2 Types of Reactions

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Chapter 16 and 17

Chapter 16 and 17. Chemical Bonding and Chemical Reactions. Chemical Bonding. The force that holds two atoms together Unites atoms in a molecule Atoms bond so they will become more stable . Their outer rings will resemble the noble gases. Ionic Bonds. Ion

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Introduction to Chemical Reactions

Introduction to Chemical Reactions. Making new substances . Main Ideas. Chemical Reactions are represented by Chemical Equations. Chemical Equations are balanced to show the same number of atoms of each element on each side.

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Foundations of Physical Science

Foundations of Physical Science. Workshop: Periodic Table Tiles. Chemical Equations and Recipies. CPO Science. How can we model the rearrangement of atoms that happens during a chemical reaction? How can we predict chemical formulas?. Key Questions. Chemical reactions and the environment.

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Writing and Balancing Chemical Equations

Writing and Balancing Chemical Equations. Chemical Equations. Chemical reactions result in chemical changes . Chemical changes occur when new substances are created . The original substance(s), called reactants , change into new substance(s) called products. Chemical Equations.

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Chemical Equations and Reactions

Chemical Equations and Reactions. Describing Chemical Reactions. A chemical reaction is the process by which one or more substances are changed into one or more different substances. Reactants are the original substances Products are the resulting or new substances

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Unit 10: Energy in Chemical Reactions

Unit 10: Energy in Chemical Reactions. Cypress Creek High School Chemistry 1L Chapter 10. States of Matter. Some chemical equations indicate the state of matter of the substances Solid (s) - baking soda Liquid (l) - water Gas (g) - carbon dioxide

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Chemical Equations

Chemical Equations. These interactions are called chemical reactions . A substance that undergoes a chemical reaction is called a reactant . A substance that is formed in a chemical reaction is called a product .

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Chemical Reactions

Chemical Reactions. February 21, 2002. Evidence for Chemical Reactions. Color change Precipitation Gas production Changes in temperature Changes in properties. Chemical Equations. A shorter, easier way to showing chemical reactions using symbols instead of words

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Stoichiometry

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Molecular Weight and Molar Mass

Molecular Weight and Molar Mass. Molecular weight is the sum of atomic weights of all atoms in the molecule. example: NaCl has a molecular weight of 58.5 a.m.u. this is composed of a single molecule of NaCl. Molar mass = molecular weight in grams.

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Conservation of Mass

Conservation of Mass. Law of Conservation of Mass. The law of conservation of mass states that in any given chemical reaction, the total mass of the reactants equals the total mass of the products.

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