'Balancing chemical equations' diaporamas de présentation

Chemistry Chapter 11

Chemistry Chapter 11. Writing Chemical Equations . In a chemical reaction, one or more substances (the reactants) change into one or more new substances (the products). . Word Equations

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Chapter 7

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SOLUTIONS, ACID AND BASES

SOLUTIONS, ACID AND BASES. Solution mixture that has the same composition color , density and taste throughout. Solute substance being dissolved. Solvent substance doing dissolving * Solutions can also be gaseous, like the air you breath, or even solid, like brass and sterling silver.

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CHEMICAL INTERACTIONS

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Chemical Reactions

Chemical Reactions. Chapter 7. Chemical Equations. A way to describe what happens in a chemical reaction. Tells us what substances are involved with the reaction Tells us how much of each substance is needed in a chemical reaction. REACTANTS The substances that go into a chemical equation.

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Chapter 11 Chemical Reactions

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Chapter 3 Stoichiometry

Chapter 3 Stoichiometry. 3.1 Atomic Masses 3.2 The Mole 3.3 Molar Mass 3.4 Percent Composition of Compounds 3.5 Determining the Formula of a Compound 3.6 Chemical Equations 3.7 Balancing Chemical Equations 3.8 Stoichiometric Calculations: Amounts of Reactants and Products

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Chapter 3 - Stoichiometry Average Atomic Mass

Chapter 3 - Stoichiometry Average Atomic Mass. Many elements have a # of naturally occurring isotopes. Their atom percents in nature are known as their isotopic abundances. Isotopic abundances and isotopic masses can be measured using mass spectroscopy. When calculating average atomic mass:.

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BALANCING CHEMICAL EQUATIONS

BALANCING CHEMICAL EQUATIONS. Refresh your skills with some of the websites listed earlier. Do you remember your experiment with baking soda (NaHCO 3 ) and vinegar (CH 3 COOH)? It is written below in case you do not remember. EXPERIMENT A

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Chemical Reactions

Chemical Reactions. Chemical Reactions. Chemical Reactions happen when atoms join together in a process called Chemical Bonding. Chemical Bonding happens in the outer energy levels of the reacting atoms. Definitions.

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Balancing Chemical Equations

Balancing Chemical Equations. Balanced Equation. Atoms can not be created or destroyed All atoms we start with we must end up with A balanced equation has the same number of each element on both sides of the equation. C + O 2 ? CO 2 This equation is already balanced

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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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Balancing Chemical Equations

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Chapter 3: Stoichiometry

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WRITING CHEMICAL EQUATIONS

WRITING CHEMICAL EQUATIONS. Reactants (starting materials) ? Products (ending materials) (g) = gas (l) = liquid (s) = solid (aq) = aqueous D = heat ? = yields (dissolved in water) X ? = catalyst + = combines

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Balancing Chemical Equations

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Balancing Chemical Equations

Balancing Chemical Equations. STEP 1 . Check all molecular formulas and make sure they are neutral, then count the atoms on both sides of the equation. STEP 2. Balance elements in the following order: NM, M, Poly, H, O. STEP 3.

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Chemical Reactions Chapter 6

Chemical Reactions Chapter 6. Oct. 7-11, 2013. The Big Idea: Law of Conservation of Matter Essential Question: What happens during a chemical reaction? IB Area of Interaction: Health and Social Education IB Guiding Question: How do you react?

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Balancing Chemical Equations

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