October 3, 2011. What is an acid? Acids are compounds that accept electrons from other chemicals known as bases. Many acids contain hydrogen. Acids taste.

Slides:

Advertisements

Similar presentations

Chapter 9 Acids, Bases, and Salts

Advertisements

Acids and Bases. Acids Acids are substances that release hydrogen ions, H +, in solution Acids are substances that release hydrogen ions, H +, in solution.

PH. pH—Scale to measure how acidic or basic a solution is 0-14 Pure water is 7 and neutral (not an acid or base) Acids—less than 7(lower number more acidic)

Ch 11 Acids & Bases Test Review. 1.Color Change; Universal indicator- yellow, orange and red Blue Litmus paper  turns red 2.) Sour taste and conducts.

Chapter 9 Acids & Bases.

Acids & Bases. Properties of Acids & Bases  Acids Aqueous solutions of acids have a sour taste Turn blue litmus paper to red React with metals to produce.

Acids, Bases, and Solutions

Unit: Chemical Interactions Chapter 8: Solutions When substances dissolve to form solutions, the properties of the mixture change. 8.1: A solution is a.

Acids and Bases. Properties of Acids: Properties of ACIDS: 1. tastes sour.

Year 8 Chemistry.

ACIDS AND BASES. ACIDS & BASES Acids are substances that produce hydrogen ion in solution. (H + (aq) ) Bases are substances that produce hydroxide ions.

Acids, Bases, Salts and pH Physical Science. Acids Acids are chemicals in which the positive ion is a hydrogen atom. n for example; HCl or H 2 SO 4 n.

Acids were first recognized as a distinct class of compounds because of the common properties of their aqueous solutions. Aqueous solutions have a sour.

Solutions, Acids, and Bases Acids, Bases, and Salts IQRA MODEL SCHOOL, TANDUR.

ACID AND BASES. ACIDS Acids are sour in taste Acids are sour in taste Present in fruit, vegetables and human body as well as obtained from the earth.

Compounds and Molecules When two elements combine chemically it is called a compound. The number after the symbol in a compound tells the number of.

Exploring Acids and Bases What are the properties of acids and bases?

Pp. Synthesis  two or more elements or compounds may combine to form a more complex compound.  Basic form: A + X → AX  EX. 2Mg (s) + O 2(g) → 2MgO.

 An acid is a substance that produces a hydronium ion (H 3 O + ) when placed in water.  Examples of Acids:

Chemical Properties and Changes. Chemical Properties Properties that change the chemical nature of matter Can not be determined by touching or viewing.

ACIDS AND BASES EVERYDAY REACTIONS. WHAT ARE ACIDS? AN ACID IS A CHEMICAL THAT REACTS WITH A BASE TO PRODUCE A SALT AND WATER. SOME ACIDS ARE STRONG AND.

Acids and Bases. Acid Group of compounds with some common properties when in solution Group of compounds with some common properties when in solution.

Section 3.4. Acids are chemicals in which the positive ion is a hydrogen atom.  for example; HCl or H 2 SO 4  When mixed with water they produce a free.

Unit 9 Acid-Base Chemistry Chapters 14 & 15. ACIDS & BASES Chapter 14.

Acids and Bases SC Physical Science Standard PS-3.8 Classify various solutions as acids or bases according to their physical properties, chemical properties.

Acids and Bases. A. Definitions 1. Acid releases hydrogen ions (H + ) 2. Bases release hydroxide ions (OH - ) 3. pH scale – measures how acidic or basic.

Acids and Bases. Acids from the Latin word acere  “ sharp ” or “ sour ” taste sour (but you wouldn ’ t taste an acid to see) change litmus paper red.

Acids and Bases. Nevada State Standards  P.5.A.3. Students know materials can be classified by their observable physical and chemical properties.  N.8.B.2.

Acids and Bases PS-3.8 Classify various solutions as acids or bases according to their physical properties, chemical properties (including neutralization.

The pH Scale Is a substance an acid or a base? Acid Properties Donate H + ions Taste sour React with certain metals to produce hydrogen gas React with.

Properties.  They taste sour (don’t try this at home).  They can conduct electricity.  Can be strong or weak electrolytes in aqueous solution  React.

Acid and Base Strength Acids Have a sour taste.

 In addition to physical properties, elements have chemical properties.  Chemical properties describe the way elements interact with one another.

Water Solutions of Acids Universal Indicator is yellow Turn phenolphthalein colorless Turn litmus paper red React with metals to give off hydrogen gas.

Science 10 Mr. Francis 8.1 – CLASSIFYING INORGANIC COMPOUNDS.

BIOCHEMISTRY 2-2. PROPERTIES OF WATER Polarity- Water is polar because of the uneven distribution of electrons between the O and the H.

PH notes pH = % Hydrogen. Many compounds are soluble (can dissolve) in water. When an ionic compound dissolves in water, ionic bonds are broken. As a.

Properties of Acids and Bases Acids Acids taste sour, will change the color of an acid-base indicator, and can be strong or weak electrolytes in aqueous.

Acids, Bases, and pH Chapters 14/15. 1.Aqueous solutions of acids have a sour taste. 2.Acids change the color of acid-base indicators. 3.Some acids react.

ACIDS AND BASES PH.

Introduction to Acids and Bases Chapter 19. What is and Acid? Arrhenius Acid Defined as any chemical that increases the concentration of hydrogen ions.

Chapter 9 Lesson 3 ACIDS, BASES, AND SALTS. Vocabulary Acid: substance that tastes sour and turns blue litmus paper red when dissolved in water; releases.

Acids and Bases Applied Chemistry. Acids  Definition: A substance that produces hydrogen ions (H + or H +1 ) in water.  General reaction in water: HA.

Acids, Bases and the pH scale. pH scale pH stands for “potential of Hydrogen” The pH scale is a range of values from 0-14 that express the concentration.

P.Sci. Unit 11 Cont. Solutions, Acids, and Bases Chapter 8.

Acids and Bases Notes and Questions Ms. Haapala. Acids and Bases Standard 5 Acids, bases, and salts are three classes of compounds that form ions in water.

Acids, Bases, and Salts. pH pH – measure of the concentration of H + ions in a solution or how acidic or basic it is. Scale ranges from 0-14 Strong acids.

Acids & Bases. What are Acids and Bases..? What do we think about when we hear the words acids or bases? Sometimes we tend to think of a chemistry laboratory.

© Houghton Mifflin Harcourt Publishing Company Acids 1.Aqueous solutions of acids have a sour taste. 2.Acids change the color of acid-base indicators.

Acids & Bases They are everywhere.. In your food In your house EVEN IN YOU!!!!! Ch

Acids / Bases / Salts Physical Science Mr. Rimple.

Properties of Acids and Bases Acids Bases *Taste sour*Taste Bitter *Turns blue litmus paper red*Turns red litmus paper blue *Reacts with metals*Produces.

19-2 Describing Acids and Bases

P in Prentice Hall Biology, Miller and Levine.

Acids & Bases They are everywhere.. In your food In your house EVEN IN YOU!!!!!

Unit 11 Acids and Bases. ACIDS Any substance that generates a hydrogen ion (H + ) when dissolved in water The pH of an acid ranges from 0-6; 0 is the.

An introductory powerpoint presentation on the study of acids, bases and related concepts.

Working with solutions Solutions and suspensions Suspension-a mixture in which particles can be seen and easily separated by settling or filtration Solution-

ACIDS AND BASES. Acids 1.Aqueous solutions of acids have a sour taste. 2.Acids change the color of acid-base indicators. 3.Some acids react with active.

Acids and Bases. Indentifying Properties Acids Sharp, sour, or tart taste Turn litmus paper red Phenolphthalein (liquid indicator) remains clear React.

Acids, Bases, & pH.

Chemistry Review Created by Educational Technology Network

Acids and Bases.

Lecture 7.1 – Properties of Acids/Bases

ACIDS and BASES.

ACIDS and BASES.

Elements, Mixtures, Compounds and Solutions

Acids, Bases, Salts and pH

Do Now: Define the following words on your vocabulary sheet: Constants

Presentation transcript:

October 3, 2011

What is an acid? Acids are compounds that accept electrons from other chemicals known as bases. Many acids contain hydrogen. Acids taste sour, conduct electricity, and often react with metals to release hydrogen gas. We measure the strength of acids with the pH scale. Very strong acids have a pH of 0. Weak acids have a pH of 6.

What is a base? A base is a compound that donates electrons to an acid. Bases taste bitter, are slippery, and conduct electricity. We measure the strength of bases with the pH scale. Very strong acids have a pH of 14. Weak bases have a pH of 8.

The pH scale Indicators like litmus paper and phenolphthalein can identify chemicals as acids or bases

Acid-Base Reactions When acids and bases react, they neutralize each other. The products are generally salt and water. Energy is often released as heat. Exothermic reactions – heat is produced or released during the reaction

Law of Conservation of Matter Matter can be neither created nor destroyed. The mass of the reactants of a reaction must be equal to the mass of the products of a reaction. 2g H g O 2 -> 18g H 2 O The numbers of atoms of each element in the reactants must be equal to the numbers of atoms of each element in the products. 2 H 2 + O 2 -> 2H 2 O

Law of Conservation of Matter The numbers of atoms of each element in the reactants must be equal to the numbers of atoms of each element in the products. 2 H 2 + O 2 -> 2H 2 O Atoms in ReactantsAtoms in Products HOHO