'Universal indicator' diaporamas de présentation

Analysis

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Acids produce H + in solution, example: HCl Bases produce OH - in solution, example NaOH

Acids produce H + in solution, example: HCl Bases produce OH - in solution, example NaOH. What is an acid?. Acids are a group of chemicals. laboratory acids. everyday acids. Can you think of other examples of acids?. What is a weak acid?.

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Acids and Bases Notes

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Reactions of Acid

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Do now!

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The effect of dilution on the pH of an acid

The effect of dilution on the pH of an acid. more dilute. Test tube 1. Test tube 5. An acid solution is diluted by the addition of water. more dilute. Universal indicator is added to each solution. lowest pH. most acidic. }. {. {. }. }. a) The solution in tube 1 is.

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Metal Acid Reactions

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Reactions of Acid

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ACIDS AND BASES

ACIDS AND BASES. Properties of ACIDS. associated with a sour taste water soluble react with metals to produce hydrogen gas good conductors of electricity associated with H + strong acids can be dangerous. Properties of BASES. associated with a bitter taste opposite of acids

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ACIDS & BASES

ACIDS & BASES. What are Acids? . An acid is any compound that yields hydrogen ions (H + ) or hydronium ions (H 3 O + ) when dissolved in water. Hydronium ions are really the combination of H + ions and H 2 O molecules, i.e. H + + H 2 O ? H 3 O + . Examples of Common Acids

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ALIENS

ALIENS. Have landed in Saltash !. Aliens in Saltash !. There has been a report of an Unidentified Flying Object (UFO) in Saltash .

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Acids and Bases

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Acids & Bases

Acids & Bases. Navjot Kaur Nathan Coffing Sapphira Darmawan Connor McDevitt. Definitions. Acid- A substance that dissolves in water, producing H + ( aq ) ions. Base- A substance that neutralizes an acid, producing a salt and water as the only product.

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ACIDS AND BASES

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Quiz

Quiz. What is an acid? What is a base? Give 3 properties that acids and bases each have in general. What does the pH scale indicate? You tested an unknown substance with universal indicator and it turned red, is the substance acidic or basic?

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Acids Bases and pH

Acids Bases and pH. Year 8 Science Mr Kos. Acids and Bases. pH pH refers to the concentration of H 3 O+ Lots of H 3 O+ means low pH (acid) Less H 3 O+ means high pH (base) Lots of indicators are available. Acids and Bases. indicators

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Properties of Acids and Bases

Properties of Acids and Bases. Properties of Acids. Sour Tasting Corrosive Oily Feeling Caustic-burns through things React with Metals. Properties of Bases. Bitter Tasting Slippery Taken for an upset stomach Do not react with metals Often called Alkaline. p H.

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Acids, Bases, Universal Indicator and pH Scale

Acids, Bases, Universal Indicator and pH Scale. By: Faisal Abu Issa. pH Scale. People use the pH scale to measure the acidity or the basicity. From 1-7 is acid and from 7-14 is a base, 7 is neutral its neither acid or basic. Base.

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How is Human Health Linked With The Environment?

How is Human Health Linked With The Environment?. Environmental Hazards: Cultural, Biological, Physical, & Chemical. Cultural : Risky behavior that subjects one to hazards Biological : Infectious Diseases Physical : Natural Disasters such as hurricanes, floods, tornadoes, fires, earthquakes

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Chemical Reactions and Properties

Chemical Reactions and Properties. Chapter 2, Lesson 4 By : Alex Wallace. separating Mixtures. Chemical properties may be used to separate some mixtures Mixtures can be separated by physical means. Separating metals from ores.

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