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2-2 Class Review
1. What does pH stand for? A. Phosphorus hydrogen B. Power of Hydrogen C. Potassium Hydrogen D. Pure Hydrogen
2. Write the equation in which water becomes ions? A. H 2 O H + + OH — B. H+ + OH - H 2 O
3. What is H+? A. Hydrogen B. Hydrogen Plus C. Hydrogen Negative Ion D. Hydrogen Positive Ion
4. What is OH- ? A. Oxygen-Hydrogen B. Hydroxide Negative Ion C. Oxide Hydrogen Negative Ion D. Carboxyl Negative ion
5. In a chemical equation, what is listed before the arrow? A. Reactants B. Products C. Cupid
6. In this CHEMICAL EQUATION list the products only? (As written) H 2 O H + + OH — A. H 2 O B. H+ and OH — C. H+ D. OH —
7. The pH scale ranges from 0 to___ A. 7 B. 10 C. 14 D. -7
8. What does a pH of 7 mean, in relation to H+ and OH- ions? A. More H+ ions than OH- B. Less H+ ions than OH- C. Equal H+ ions and OH-
9. Give an example of a substance that has a pH of 7. A. Orange Juice B. Bottled Water C. Creek Water D. Milk
10. These substances have a pH below 7 and have more H+ ions than OH- a.Acids b.Bases c.Neutral d.None of these
11. These substances have a pH above 7 and have more OH- ions than H+. A. Acids B. Bases C. Neutral D. None of these
12. Give an example of an acid A. Soap B. Bleach C. HCl D. Sea Water
13. Give an example of a base A. Milk B. Bleach C. Ketchup D. Lemon Juice
14. What are buffers? A. Make things shiny B. Weak acids or bases C. Water and non dissolved material D. None of these
PH is the measurement of the concentration of H+ ions in a solution. (Or how acidic or basic a solution is.) 1. The pH scale has a range from 1 to 14.
The pH scale. pH scale This scale is used to determine the concentrat’n of H + ions versus OH - ions Things that are neutral are pH 7, acids are below.
Acids, Bases and pH The Power of Hydrogen. pH Scale Tells us the concentration (how much) H + ions in a solution Ranges from is neutral Equal concentration.
pHpH pH scale- measure of H + ions (acidity); “power of hydrogen” H + = hydronium ion OH- = hydroxide ion #10.
CH. 2-2 IN CLASS NOTES PROPERTIES OF WATER. Water, Water Everywhere If you have ever seen a photograph of Earth from space, you know that much of the.
UNIQUE PROPERTIES OF WATER: Water can break apart to form hydrogen ions (H+) and hydroxide ions (OH-). Water can break apart to form hydrogen ions (H+)
Acids and Bases. Ionization of Water H 2 O + H 2 O H 3 O + + OH - K w = [H 3 O + ][OH - ] = 1.0
Ch. 8. pH Scale Used to measure how acidic or basic a substance is Ranges from 0-14.
PH and pOH Ways to measure Acidity/Basicity What is pH? What is pOH?
BASES ACIDS. Identify acids and bases based on their pH. Understand and balance a Neutralization reaction. pH Neutral Neutralization Key Words.
pH: a mathematical measure of hydrogen ions and hydroxide groups in a solution.
Acid-Base Notes. Acid- Compound that forms hydrogen ions (H + ) when dissolved in water Base – compounds that forms hydroxide ion (OH - ) when dissolved.
II. Properties of Water *Water is the single most abundant compound in most living things. A. The Water Molecule 1. Polarity Polar molecule – a molecule.
pH: a measure of the acidity or basicity of an aqueous solution The measure of hydrogen ions (these are positively charged)
PH Review. The cause of a substance being acidic is… 20 1.pH pH Many Hydroxide ions 4.Many Hydrogen ions
PH and pOH Chem 332 – ODette. pH (Potential of Hydrogen) Measures the degree of acidity or basicity of an aqueous solution Corresponds to the hydrogen.
Acids and Bases The pH scale What do vinegar, lemons, and orange juice have in common?
ACIDS & BASES An Overview. Acids A compound that produces hydrogen ions (H+) when dissolved in water. Properties include sour taste, reactivity with metals,
Acids, Bases, and Solutions A hydrogen ion (H + ) is an atom of hydrogen that has lost its electron. An acid is any substance that produces hydrogen ions.
Acids and Bases Acids and Bases and Bears oh my..
Water Why is water so important to life? Water covers more than 75% of the Earth’s surface. Living organisms are composed of 60-90% water. Life.
ACIDS AND BASES PH. THE PH SCALE IS USED TO MEASURE HOW ACIDIC OR BASIC A LIQUID IS. THE SCALE RANGES FROM CLOSE TO 0 – 14 ACIDS RANGE FROM 0 - JUST BELOW.
TEKS 10I: Define pH and use the hydrogen or hydroxide ion concentrations to calculate the pH of a solution. How is pH defined? The pH of a solution is.
PH Relative concentration of H + ions in water HOH ↔ H + + OH - O HH
P in Prentice Hall Biology, Miller and Levine.
Quick Review Acids produce H + (also written as H ) ions in water Bases produce OH - ions in water H + + OH - → H 2 O An acid plus a base yields.
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.
Properties of Water Chapter 2.2. Water makes up about 60% of the human body and almost ¾ of the Earth's surface. There would be no life on Earth without.
PH scale Notes HeadingsVocabularyImportant Info. Acids, Bases and pH Scale The pH scale measures the concentration of H+ (hydrogen) ions or how acidic/basic.
End Show Slide 1 of 44 Copyright Pearson Prentice Hall Biology.
Chapter 16 Acids and Bases Ionization of Water The pH Scale 7-4.
PH Scale In this presentation you will: explore how to measure the strength of acids and bases Next >
PH and Concentration. pH Recall water H 2 O H + + OH - Every water molecule produces one hydrogen ion and one hydroxide ion At equilibrium, K eq = [products]
PH. What is pH? pH is a measure of how acidic or basic a solution is pH of a solution is compared to the pH scale.
Acids, Bases, and pH A water molecule can react to form ions. Water Hydrogen ion + Hydroxide ion.
PH ALL THE NEAT DETAILS ON IT. WHAT IS PH? The pH scale is a number scale used for measuring how acidic or basic a solution is FYI: pH stands for the.
PH Scale Objective: To learn about the pH Scale and test some substances for pH Lesson One.
Chemistry Basics -Part Two. Covalent Bonds Can Be Nonpolar Or Polar… Remember that covalent bonds occur between atoms that share electrons. There are.
Take out a scrap piece of paper… List 2 acids and 2 bases.
Acids & Bases. I. Water pH is neutral A. We know that water is a polar molecule composed of oxygen and hydrogen. B. We also know that water is a great.
The pH scale. pH Measure of acidity of a solution 0 to 14 Water is neutral because of equal amounts of hydrogen and hydroxide ions. Acidic solution has.
Acids, Bases, and pH Biology. Acids Any compound that forms H+ ions when dissolved in water pH of less than 7 Strong acids tend to have values that range.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Water and Solutions Chapter 2 Acids and Bases Section.
Ch. 2-2 Properties of Water. The water molecule Like all molecules, a water molecule is neutral. The positive charges on its 10 protons balance out the.
Acids / Bases Foster ESS Study this for the Quiz.
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.
INDICATORS & pH: Part 2 What is the difference between an acid and a base? Acid: H 3 O + (hydronium) ion Base: OH - (hydroxyl) ion Acids: react with metals.
Acids and Bases. Think back to a time when you have eaten something very sour… Think back to a time when you have eaten something very bitter… What were.
Continuing into the world of acids and bases…. pH of a solution is the negative logarithm of the hydrogen ion concentration pH = -log [H + ] This.
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