'Chlorine gas cl 2' presentation slideshows

Chemical Bonding: Basic Concepts

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DISINFECTION

DISINFECTION. Overview. What is disinfection? Types of disinfectants Forms of chlorine NSF/ANSI Standard 60 Disinfection requirements for surface water CTs Tracer Studies and Contact Time Impact of disinfectants on organics. What is disinfection?.

1.46k views • 84 slides

Chapter 4

Chapter 4. Matter and Energy by Christopher Hamaker. Matter. Matter is any substance that has mass and occupies volume. Matter exists in one of three physical states: Solid Liquid Gas. Gaseous State.

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Chlorine Demand

Chlorine Demand. WQT 134 Environmental Chemistry II. Lab 9 Objectives. Reading assignment: AWWA 2003. Water Treatment, Principles and Practices of Water Supply Operation, Third Edition, American Waterworks Association, ISBN 1-58321-230-2 Chapter 7 Disinfection.

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Water Treatment 4. Softening

Water Treatment 4. Softening. Water Softening Hard water Hard water is usually defined as water which contains a high concentration of Ca++ and Mg++ ions. Water Softening Softening is the removal of hardness from water. Types of Hardness Carbonate hardness (Temporary Hardness)

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ENVE 201 Environmental Engineering Chemistry 1

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Chemical Reactions

Chemical Reactions. - Observing Chemical Change. Properties and Changes in Matter. Matter can undergo both physical change and chemical change. - Observing Chemical Change. Asking Questions. Properties and Changes of Matter. Question. Answer. What are physical properties of matter?.

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Balancing Chemical Equations

Balancing Chemical Equations. Balancing Chemical Equations. To describe a reaction accurately, a chemical equation must show the same number of each type of atom on both sides of the equation. Chemists say an equation is balanced when it accurately represents Conservation of Mass.

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Describing Chemical Reactions

Describing Chemical Reactions. Chapter 6.2 Page 224. Section 2: Describing Chemical Reactions. What information does a chemical equation contain? How is matter conserved during a chemical reaction? What must a balanced chemical equation show? What are three types of chemical reactions?.

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Percent Composition of Mixtures and Compounds

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Moles and gas volumes

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