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The attraction between a hydrogen atom on one water molecule and the oxygen atom on another Hydrogen bond
solvent The substance in which a solute dissolves
pH scale A measurement system to indicate the concentration of H+ ions in solution
Covalent bond A bond in which electrons are shared between atoms
suspension A mixture of water and nondissolved material; includes important biological fluids like blood
acid Any compound that forms H+ ions in solution
Ionic bond A bond formed between oppositely charged ions
cohesion An attraction between molecules of the same substance
mixture A material composed of two or more elements or compounds that are physically mixed together but not chemically combined
adhesion An attraction between molecules of different substances
solution The components (parts) of these are evenly distributed throughout
base A compound that produces hydroxide (OH-) ions in solution
buffer Weak acids or bases that can react with strong acids or bases to prevent sharp, sudden changes in pH (keep pH balanced)
solute The substance in a solution that is dissolved
Chapter 2 Section 2 Properties of Water. The Water Molecule… The chemical symbol for water is H 2 0. – This means the molecule consists of 1 Oxygen atom.
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.
Chapter 2.2 By the end of this lesson you will be able to describe the properties of water and determine the differences between acids and bases using.
Section 2–2. Objective This section describes the makeup of water molecules. It also explains what acidic solutions and basic solutions are. This section.
The contents of this presentation include: The Water Molecule Cohesion vs. Adhesion Solutions and Suspensions Acids, Bases and pH.
Properties of Water. The Water Molecule A water molecule is polar because there is an uneven distribution of electrons between the oxygen and hydrogen.
2.2 The Water Molecule Polarity A water molecule is polar because there is an uneven distribution of electrons between the O and H atoms.
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.
The Chemistry of Life Properties of Water. The Water Molecule Polarity –Polar molecules have a region with a slight positive charge and a slight negative.
I. The Water Molecule Water has a partial negative charge at one end, and partial positive charge on the other. Water has a partial negative charge at.
PROPERTIES OF WATER. WATER COVERS ¾ OF EARTH’S SURFACE MOST ABUNDANT COMPOUND IN LIVING THINGS LIQUID AT THE TEMPS FOUND OVER MUCH OF THE EARTH’S SURFACE.
W ATER Water W HY IS WATER IMPORTANT ????? All living things need water, and most organisms contain water. Most of our body weight is water! Biological.
2.2 The Properties of Water. The Water Molecule The Chemical compound for Water is H 2 O Overall, Water is Neutral, because it has same amount of protons.
Properties of Water Chapter 2-2. The Water Molecule Water covers ¾ of the Earth’s surface Single most abundant compound in living things Expands.
Properties of Water and pH VmU3CLxvgU.
2-2 Properties of Water. The Water Molecule Like all molecules, a water molecule is neutral.
A mixture is a material composed of 2 or more elements or compounds that are physically mixed together but not chemically Example: salt & pepper.
End Show Slide 1 of 44 Copyright Pearson Prentice Hall Biology.
2.2 Properties of Water. Water H 2 O, H-O-H H 2 O, H-O-H Polarity – one region of molecule is more + and other end is more - ; overall neutral Polarity.
Lesson Overview Lesson Overview Properties of Water Lesson Overview 2.2 Properties of Water.
2-2 Properties of Water Slide 1 of 44 Copyright Pearson Prentice Hall The Water Molecule Like all molecules, a water molecule is neutral.
Water molecules are formed by covalent bonds that link two hydrogen (H) atoms to one oxygen (O) atom. Water molecules have a slightly positive.
The Chemistry of Life Properties of Water. The Water Molecule Neutral Charge –All Molecules Are Neutral.
Section 6.3 Water & Solutions Evaluate how the structure of water makes it a good solvent. Distinguish mixtures and solutions. Define acids and bases and.
Biology Basic Chemistry – Chapter 2 Section 1 and 2.
Water The Single most abundant compound in most living things.
PROPERTIES OF WATER Chapter 2.2. The Meniscus Effect Water molecules have the ability to stick to each other and their containers in a way that creates.
Click on a lesson name to select. Chapter 6 Chemistry in Biology Section 1: Atoms, Elements, and Compounds Section 2: Chemical Reactions Section 3:
Properties of Water. Objectives: 1.Why are water molecules polar? 2.What are acidic solutions? 3.What are basic solutions?
Basic Chemistry & Chemical Bonds. Subatomic Particles Proton (+) Electron (-) Neutron (n) Nucleus of an atom contains protons and neutrons Electrons orbit.
Chemistry Study Guide. 1. What makes up an atom? Atoms are made of protons, neutrons and electrons.
Page 1 The Chemistry of Life Properties of Water.
The Chemistry of Life. Section 2.1 Atoms The basic unit of matter are atoms. 100 million atoms would make a row only about 1 cm long! Consists of subatomic.
Properties of Water. Life depends on Hydrogen bonds in water Water is a polar molecule. – Polar molecules have slightly charged regions. – Nonpolar molecules.
Vocabulary Write the terms and definitions for each vocabulary word from sections 2-1, 2-2 and 2-3. Keep these pages in your vocabulary divider. Extra.
Properties of Water. A compound is a pure substance made up of atoms of two or more elements The proportion of atoms are always fixed Chemical formula.
The Chemistry of Life Properties of Water copyright cmassengale.
Chapter 2 The Chemistry of Life Sec. 2-2 Properties of Water.
End Show Slide 1 of 44 Copyright Pearson Prentice Hall Outline 2-2: Properties of Water.
2.2 Properties of Water H2OH2O # of Protons # of Electrons Atomic Mass
Slide 1 of 44 Copyright Pearson Prentice Hall Biology.
Describe why hydrogen bonding in water is important Explain why water is such a good solvent (example: salt dissolving in water) Describe the difference.
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.
2.2 The Properties of Water. The Water Molecule The Chemical formula for Water is H 2 O Overall, Water is Neutral, because it has same amount of protons.
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.
The Chemistry of Life Chapter 2. Ch 2.2-Properties of Water.
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