'Writing chemical equations' diaporamas de présentation

When a substance undergoes a chemical change, it takes part in a chemical reaction.

Chapter 8 Notes. Recognizing Chemical Reactions. When a substance undergoes a chemical change, it takes part in a chemical reaction. After it reacts, it no longer has the same chemical identity. Recognizing Chemical Reactions.

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Chemical Formulas

Methane CH 4. Chemical Formulas. DIATOMIC - two atoms; example: H 2 , N 2 , CO (carbon monoxide) TRIATOMIC - three atoms; example: CO 2 (carbon dioxide), O 3 (ozone) POLYATOMIC - more than three atoms; examples: NH 3 (ammonia), CH 4 (methane), C 2 H 6 O 2 (ethylene glycol).

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Chapter 8 Chemical Reactions

Chapter 8 Chemical Reactions. Evidence of Chemical Change. Evidence of Chemical Change Color change Formation of a solid Formation of a gas Absorption or release of heat energy Emission of light energy. Evidence of Chemical Change. Color change. Formation of a solid.

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Writing Chemical Equations

Writing Chemical Equations. Parts of a Reaction. Reactants The starting materials in a chemical reaction Products The substances that are formed in a chemical reaction. Parts of a Reaction. A chemical equation shows how atoms are rearranged during a reaction Reactants appear on the LEFT

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Chemical Reactions

Chemical Reactions. Chapter 10. Chemical Reactions and Equations: Basic Concepts. Topic 8. Recognizing Chemical Reactions. When a substance undergoes a chemical change, it takes part in a chemical reaction. After it reacts, it no longer has the same chemical identity.

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Chapter 11 Chemical Reactions

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Chemical Nomenclature

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Unit 7 - Nomenclature

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Chemical Equations

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Writing Chemical Equations Text Reference: Ch 7, Section 2 - 3

Writing Chemical Equations Text Reference: Ch 7, Section 2 - 3. Chemical Reactions. A chemical reaction is a process. What does this mean? Give some examples of processes Is baking a cake a process? Name some ingredients of baking a cake What is the product of this baking a cake process?

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Formation of Interstellar Polyatomic Substances

Formation of Interstellar Polyatomic Substances. Lewis Symbols. Chemical and physical properties of elements are related to the number of electrons in their valence shells For A-families (Main Group elements) the number of valence electrons = Group number

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Chemistry Chapter 6

Chemistry Chapter 6. Chemical Reactions and Equations. Chemical Equations. Recognizing Chemical Reactions Change in Color Change in Odor Precipitation (can be a solid from a liquid) Energy changes (heat, light, cools) Evolution of a gas (bubbles)

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Chemical Reactions

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Describing Chemical Reactions

Describing Chemical Reactions. http://www.youtube.com/watch?v=F54rqDh2mWA. Chemical Change v. Physical Change. Chemical Change Break or form chemical bonds Molecular formulas of the products are NOT exactly the same as the reactants Example:

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Unit 7: chemical reactions

Unit 7: chemical reactions. Evidence of Chemical Change. Changes in Energy Release of energy as heat Release of energy as light Production of sound Reduction or increase in temperature Absorption or release of electrical energy. Formation of new substances Formation of a gas

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Stoichiometry

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Chemical Equations

Chemical Equations. Chemical Equation: A method of representing reactants and products of a reaction by showing the formulas. Example: 2H 2 + O 2 ? 2H 2 O In the reaction above, we can see that hydrogen reacts with oxygen to form water. Writing Chemical Equations.

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Daily Science pg. 68

Daily Science pg. 68. Name the following Covalent compounds SO 2 OF 2 N 2 O CCl 4 PCl 5 N 2 O 5 P 2 O 5 NH 3 Write the formula from the name Iron (II) oxide Potassium Nitrate Diphophorus pentoxide Boron trifluoride Calcuim Chloride trinitrogen heptoxide

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Read Sections 5.1 and 5.2 before viewing the slide show.

Read Sections 5.1 and 5.2 before viewing the slide show. Unit 17 Chemical Equations. Writing Chemical Equations Balancing Chemical Equations Volume Relationships from Chemical Equations. Writing Chemical Equations (5.1).

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Balancing Chemistry RXN

Balancing Chemistry RXN. MAKING SENSE OF CHEMICAL EQUATIONS.

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