'Acidic solutions' diaporamas de présentation

Drill: Determine EC, EDD, & Ox # for each element in CuCl 2

Drill: Determine EC, EDD, & Ox # for each element in CuCl 2. Chemical Periodicity. Atomic Size. Size increases as you go down in any column Size decreases from left to right in any row. Ionic Size. Size increases as total charge decreases C +2 > C +4 F -1 > F.

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Chapter 15a Neutral, Acidic, and Basic Solutions

Chapter 15a Neutral, Acidic, and Basic Solutions. Because the hydronium ion and hydroxide ion concentrations are the same in pure water, it is neutral. Any solution in which [ H 3 O+ ] = [ OH? ] is also neutral. Acids increase the concentration of H 3 O+ in aqueous solutions.

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Preparation of catechol-containing polymers and their applications

Preparation of catechol-containing polymers and their applications. 2012.12.29 ???. A Stiff Injectable Biodegradable Elastomer. Four-armed PEG modified with dopamine is described which changes from liquid to elastic solid by reaction with Fe 3 + solution.

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Electrochemistry

Electrochemistry. homework. Page 863 1-13, 17, 31-89 odd. Oxidation- Reduction Reactions. Redox or oxidation-reduction reactions are reactions that involve a transfer of electrons. O xidation i s the l oss of electrons. R eduction i s the g ain of electrons.

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Acids and Bases

Acids and Bases. The pH Scale. The pH scale measures the ratio of hydrogen-based ions. 2H 2 O ? OH - + H 3 O + Water molecules dissociate into hydroxide anions ( OH - ) and hydronium cations ( H 3 O + ). The pH Scale. Neutral solutions have an equal amount of hydroxide and hydronium ions

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Concentration, pH, Temperature and Pressure

Concentration, pH, Temperature and Pressure. Concentration. A solution is a homogeneous mixture of one substance (the solute) dissolved in another substance (the solvent). Concentration is a ratio of the amount of solute to the amount of solvent.

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Science Fair Project

Science Fair Project. Question ??. How does acid rain effect plant growth?. Hypothesis. Acid rain will cause plant growth to be slowed and stunted. Experiment:.

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Types of Chemical Reactions

Types of Chemical Reactions. Synthesis Reactions. Smaller atoms/compounds combine to form larger molecules Also known as combination or addition reactions. A + B ? AB. 2H 2 + O 2 ? 2H 2 O. Synthesis Reaction. Synthesis Reactions -Examples.

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Measuring pH and pOH

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King

pH. King. 7-5.6 Distinguish between acids and bases and use indicators (including litmus paper, pH paper, and phenolphthalein) to determine their relative pH.

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Environmental Science

Environmental Science. Lesson 6 - pH. Everyday pH. pH is both in and around us all the time Body organs require certain pH to function Food/drink Some people are sensitive to acids Colas, orange juice, coffee, etc. Can remove calcium from bones in women Cleaning products

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Acids and Bases

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Introduction to Acids and Bases

Introduction to Acids and Bases. What are they and how do we as scientists measure them?. pH Scale. pH is a measure of how acidic or basic a solution is. The pH scale ranges from 0 to 14. A solution with a pH of 7 is neutral . Pure water has a pH of 7. .

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pH of Salts

pH of Salts. When acids are neutralized by bases, water and a salt is formed. The salt solution can be acidic, basic, or neutral depending on the acid and base used in the neutralization. Neutral salts (pH=7) are only produced when both acid and base were strong .

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Chemistry Chapter 19.3

Chemistry Chapter 19.3. Strengths of Acids and Bases. Strong and Weak Acids and Bases. Acids and bases are classified as strong or weak according to the degree to which they ionize in water. Strong acids are completely ionized in aqueous solution.

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Autoionization of Water

Autoionization of Water. H 2 O (l) + H 2 O (l). H 3 O + (aq) + OH - (aq). . . . OR. H + (aq) + OH - (aq). H 2 O (l). K w = [H + (aq) ] [OH - (aq ) ] = 1.0 X 10 -14 at SATP. In neutral solutions [H + (aq) ] = [OH - (aq) ]

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