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Acids and bases

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Page 1: Acids and bases. Acids An acid is any compound that increases the number of hydrogen ions when dissolved in water Solution tastes sour Can change the

Acids and bases

Page 2: Acids and bases. Acids An acid is any compound that increases the number of hydrogen ions when dissolved in water Solution tastes sour Can change the

Acids

An acid is any compound that increases the number of hydrogen ions when dissolved in water

Solution tastes sour Can change the color

of certain compounds

Page 3: Acids and bases. Acids An acid is any compound that increases the number of hydrogen ions when dissolved in water Solution tastes sour Can change the

Properties of acids

Many acids are corrosive (destroy body tissue and clothing)

Many are also poisonous Solutions of acids conduct an electric

current Turns blue litmus paper red

Page 4: Acids and bases. Acids An acid is any compound that increases the number of hydrogen ions when dissolved in water Solution tastes sour Can change the

Uses of acids Sulfuric acid – industrial

chemical used in the production of

Metals Paper Paint Detergents Fertilizers Car batteries

Nitric acid

Fertilizers Rubber Plastics

Page 5: Acids and bases. Acids An acid is any compound that increases the number of hydrogen ions when dissolved in water Solution tastes sour Can change the

Uses of acids

Hydrochloric acid

Metals Keep swimming pools

free of algae Stomach acid – aids in

digestion Citric acid/ascorbic acid

Orange juice Carbonic acid/phosphoric

acid

“bite” to soft drinks

Page 6: Acids and bases. Acids An acid is any compound that increases the number of hydrogen ions when dissolved in water Solution tastes sour Can change the

Bases

A base is any compound that increases the number of hydroxide ions when dissolved in water

Solution tastes bitter, feels slippery

Can change the color of certain compounds

Page 7: Acids and bases. Acids An acid is any compound that increases the number of hydrogen ions when dissolved in water Solution tastes sour Can change the

Properties of bases

Many bases are corrosive Solutions of bases can conduct an electric

current Changes the color of litmus paper blue

Page 8: Acids and bases. Acids An acid is any compound that increases the number of hydrogen ions when dissolved in water Solution tastes sour Can change the

Uses of bases

Sodium hydroxide used in Soap Paper Oven cleaners Products to unclog

drains Calcium hydroxide

Cement Mortar Plaster

Page 9: Acids and bases. Acids An acid is any compound that increases the number of hydrogen ions when dissolved in water Solution tastes sour Can change the

Uses of bases

Ammonia Household

cleaners Production of

fertilizers Magnesium

hydroxide/aluminum hydroxide Antacids to treat

heartburn

Page 10: Acids and bases. Acids An acid is any compound that increases the number of hydrogen ions when dissolved in water Solution tastes sour Can change the

Acids and bases neutralize one another

Acids and bases neutralize one another because of the H+ of the acid and the OH- of the base react to form water, H2O.

If the water is evaporated, these ions join to form a compound called a salt.

Page 11: Acids and bases. Acids An acid is any compound that increases the number of hydrogen ions when dissolved in water Solution tastes sour Can change the

pH scale Indicators such as litmus paper, and red cabbage juice, can identify whether a solution contains an acid or baseThe pH of a solution is a measure of the hydronium ion concentration in the solutionA pH of 7 is neutral, meaning neither acidic or basicBasic solutions have a pH greater than 7Acidic solutions have a pH less than 7

Page 12: Acids and bases. Acids An acid is any compound that increases the number of hydrogen ions when dissolved in water Solution tastes sour Can change the

Page 13: Acids and bases. Acids An acid is any compound that increases the number of hydrogen ions when dissolved in water Solution tastes sour Can change the

Lesson: Acids and Bases. Science Differentiation in action All acids have a sour taste. Carbonic acidCitric acid

ACIDS AND BASES. Properties of Acids Acids taste sour Acids effect indicators Blue litmus turns red Methyl orange turns red Acids have a pH

Acids and Bases. Properties of Acids A Acids taste sour Acids effect indicators Blue litmus turns red Methyl orange turns red Acids have a

Chapter 15 Acids and Bases. Acids Vocabulary – Hydrogen ion = H +1 = Proton General Properties of Acids: Acids have a sour taste (ex – citrus fruits,

Chapter 8 Acids and Bases Chemistry B11. Acids and Bases Acids: sour Bases: bitter or salty

The Analysis of Lactic and Acetic Acids in Sour Beers by

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Review Acids and Bases. Acids taste ______ and bases taste _______? Sour, bitter

ACIDSBASES ACIDS, BASES, & SALTS. Acids Properties of Acids 1.sour taste 2.electrolytes: - aqueous solns conduct electric current 3.react with bases to

SALTS ACIDS, BASES, AND CHAPTER 19bfhsrcook.weebly.com/.../ch._19_acids_and_bases.pptx.pdfACIDS, BASES, AND SALTS 19.1 ACID-BASE THEORIES ACIDS AND BASES Acids: Taste sour Electrolytes

Intro to Acids & Bases. Properties of Acids & Bases Acids Acids Taste sour Taste sour Reacts with metals Reacts with metals Turns litmus red Turns litmus

Acid and Base Ch 15 and 16. acids 1. tastes sour. 2. conducts an electric current. 3. Causes certain dyes ( indicators) to change color. 4. Liberates

In the West, we have identified four basic tastes—sour, …umamibook.net/wp-content/uploads/2011/03/umami-folderweb.pdfIn the West, we have identified four basic tastes—sour, sweet,

Acids & Bases and Titrations Properties of Acids & Bases Acids –taste sour –feel like water –good electrolytes –turn blue litmus paper “pink” –pH less

Acid –Base Theories 19.1 A. Acids. Describing an Acid Tastes “sour” Common compound in fruits and vegetables corrosive Forms electrolytes when

Chapter 10: Acids and Bases If It Tastes Sour It Must Be An Acid © 2003 John Wiley and Sons Publishers Courtesy Susan Johns/Photo Researchers

Acids and Bases. Acids Sour tastes Sour tastes pH: 0 – 6.9 pH: 0 – 6.9 Reacts with carbonate Reacts with carbonate to produce CO 2 gas. to produce CO

Chapter 10 Acids and bases. Identifying features of acid Sour tastes ( ex. lemon juice, vinegar) Conducts electricity when in liquid (electrolyte) React

Unit 18 18 Acids and Bases Properties of acids and Bases Acids 1. Tastes sour 2. Burns 3. Reacts w/metal to make H 2 4. Electrolyte 5. Formula usually starts with “H” 6. Indicators

Acids and Bases Sour and Bitter Acids: The term acid, in fact, comes from the Latin term acere, which means sour. Acids taste sour, are corrosive to

10.1 Acids and alkalis in daily life The orange juice tastes sour! The baking powder tastes bitter! Why do some substances taste sour and some substances

Carboxylic Acids Acids have a sour or tart taste –Examples: Vinegaracetic acid Lemonscitric acid Tart applesmalic acid

hong Kong · same day, it’s fresh. ingredient (n) The most important ingredient in sweet and sour pork is pork! sour (adj) When fruit is not ready to eat, it tastes sour. takeaway

Acids & Bases. Key Characteristics of Acids & Bases Acids Taste sour Reacts with alkali metals (forms H2 gas) Litmus paper: RedNeutralizes Bases Bases

Acids & Bases have distinctive properties… Properties of Acids and Bases ACIDS ● Have a sour taste ● Change the color of many indicators ● Are corrosive

What are Acids and Bases? 1415H Notes.pdf · Historically, classified by their observable properties ›Acids: Have a sour taste – like lemons or sour candy Corrode metals – learned

ACIDS AND BASES ChemistryMs. Piela. Key Characteristics of Acids & Bases Acids Taste sour Reacts with alkali metals (forms H2 gas) Forms electrolyte solutions

PROPERTIES OF ACIDS AND BASES. Acids taste sour or tart (vinegar, lemons) aqueous solutions of acids are electrolytes cause indicators to change colors

Chapter 13 Acids and Bases What are acids and Bases? A. Properties of Acids -tastes sour -conducts electricity -turn blue litmus paper red -reacts with

6.1 Acids and Bases SNC2D. Properties of Acids Acids: taste sour taste sour

Chapter 16 Acids and Bases Chemistry B2A. Acids and Bases Acids: sour Bases: bitter or salty

Acid and Base Ch 15 and 16 7-2. acids 1. tastes sour. 2. conducts an electric current. 3. Causes certain dyes ( indicators) to change color. 4. Liberates

Acids and Bases - getnickt.com · Acids Properties Acids:Acids: 1.11..1. sour sour 2. change color of dyes 3. dissolve metals to form hydrogen 4. react with carbonates to form CO

Acids and Bases - Springfield School Districtpeople.springfield.k12.or.us/jim.tyser/chem/Documents...Properties of Acids and Bases 2 Acids Bases •Taste Sour •Taste Bitter •Turns

CHAPTER2 Acids, Bases and Salts · Acids, Bases and Salts CHAPTER2 You have learnt in your previous classes that the sour and bitter tastes of food are due to acids and bases, respectively,