'New compound' diaporamas de présentation

Chemical Reactions

Chemical Reactions. General Reactions. Combination Rxns : 2 or more substances react to form a single product 2 H 2 + O 2 ? 2 H 2 O. Decomposition Rxns : single substance decomposes into 2 or more products opposite of combination rxns 2 H 2 O ? 2 H 2 + O 2.

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Fire Behavior

Fire Behavior. 5. Objectives (1 of 3). Discuss the fire tetrahedron. Identify the physical states of matter in which fuels are found. Describe the methods of heat transfer. Define flash point, flame point, and ignition temperature as they relate to liquid fuel fires. 5. Objectives (2 of 3).

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Topic 1 Chemistry and Measurements

Topic 1 Chemistry and Measurements. What Is Chemistry?. Chemistry is the study of the composition, structure, and properties of matter and energy and changes that matter undergoes. Matter is anything that occupies space and has mass.

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Electricity

Electricity. The most important advance in our modern world. What if our electricity was taken away. No telephone, telegraph, radio, television or computers No lighting other than that produced by burn something No cars busses or trains No central heating No music in our homes

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Chemical Reactions

Chemical Reactions. Evidence of Chemical Reactions. Temperature change Release of energy (heat or light) Color Change Odor Gas Bubbles. Representing Chemical Reactions. All chemical reactions have two parts: Reactants and Products. Reactants ? Products Example:

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Chemical Reactions

Chemical Reactions. Chapter 2 Sections 1-4 Pages 26-51. Chemical Reactions. A chemical change takes place when chlorophyll breaks down into a new substance. This is an example of a Chemical Reaction .

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Recyling and Chemistry

Recyling and Chemistry. A natural fit!. What is recycling?. When we recycle paper, plastic or aluminum, what does that mean?. Plastic is. Aluminum is. Reduce Reuse Recycle. 4 . Water Runs through the soil and forms aquifers, lakes and rivers. The World Recycles Too. 1. Water evaporates.

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Chemical Bonds & Reactions

Chemical Bonds & Reactions. WORD SPLASH. Product Reactant Yields Equation Subscript Compound Catalyst Element Ionic Covalent Bond Stable Synthesis Decomposition R eplacement. Write a story using the words on the list Underline each word used

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Elements, compounds Mixtures

Elements, compounds Mixtures. Physical VS Chemical. Elements. Only 1 kind of atom Cannot be broken down into simpler form An atom of gold ONLY has gold atoms . . Compounds. form when 2 or more different types of atoms are chemically bonded

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Fractional Distillation

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Do-now

Do-now. Name the following compounds: LiCl and S 2 O 4 What is the chemical equation for Strontium Chloride? Draw Lewis structures for the following compounds: BeF 2 and BCl 3. Chemical Reactions. When Science blows your mind. . 5 Characteristics of a chemical change.

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some are more globular (like proteins)

Polymers. -long chains of very small molecules called monomers that are strung together in chainlike fashion. some are more globular (like proteins). some are in straight chains like glue. Monomer. Polymer. Cellulose. Glue is made of polymer strands called polyvinyl acetate.

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Reaction Types

Reaction Types. Combination (Synthesis) Reactions. Two or more substances combine to form a new compound. A + X ? AX. Reaction of elements with oxygen and sulfur Reactions of metals with Halogens Synthesis Reactions with Oxides There are others not covered here!.

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Reaction Types

Reaction Types. Combination (Synthesis) Reactions. Two or more substances combine to form a new compound. A + X ? AX. Reaction of elements with oxygen and sulfur Reactions of metals with Halogens Synthesis Reactions with Oxides There are others not covered here!.

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6.2 Types of Chemical Reactions

6.2 Types of Chemical Reactions. Single and Double Displacement Neutralization. 4. Single Displacement. Element + Ionic Compound ? New element + New ionic Compound In general, A + B C ? B + A C if the A is a metal it replaces a metal Notice: A replaces B

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Formation of a precipitate

Topic: Reactions in Aqueous Solution Do Now : Label the following at ( aq ) or (s) 1. NaBr 2. PbNO 3 3. KOH 4. CuSO 4 5. Ba 2 S. Formation of a precipitate. 2 aqueous solutions mixing to produce a new compound that is insoluble (a solid). Demo. KI + PbNO 3 ? KNO 3 + PbI

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By: Jessica and Ella

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Balancing Redox Equations

Balancing Redox Equations. Identifying if a redox reaction has occurred In order for a reaction to be classified as a redox reaction there must be a change in the oxidation numbers of the Combination reactions involving at least 1 element in the reactants or products

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Abstract

PROBABILISTIC ASSESSMENT OF THE QSAR APPLICATION DOMAIN Nina Jeliazkova 1 , Joanna Jaworska 2 (1) IPP, Bulgarian Academy of Sciences, Sofia, Bulgaria (2) Central Product Safety, Procter & Gamble, Brussels, Belgium. Descriptor ranges. Distances.

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