Water, A Polar Molecule Moretz, 2012 Biology.

Slides:

Advertisements

Similar presentations

The Importance of Water

Advertisements

PROPERTIES OF WATER.

Properties of water.

Properties of Water. Water Polarity Water’s chemical formula is H 2 O The hydrogen atoms are “attached” to one side of the oxygen atom. This results in.

Water Living organisms depend on the unique properties of water.

Water. How Unique is Water?? Water is one of only 3 naturally occurring inorganic liquids Only chemical compound that naturally exists in all 3 states—solid,

Chapter 2: The Chemistry of Life

WATER Characteristics and Properties WHAT IS WATER? Inorganic Compound – derived from nonliving things Most abundant compound on Earth Found in nearly.

2.2 Properties of Water KEY CONCEPT Water’s unique properties allow life to exist on Earth.

What is so special about water? It is the most abundant compound in most living things Water is the only compound that exists in all 3 phases (solid,

Cohesion and Surface Tension. Cohesion Cohesion Molecules are attracted to other molecules of the same kind. ◦ For example, as you can see from the picture.

USOE BOOK QUESTIONS Page 162 Properties of Water #’s 1-5.

Lesson Overview 2.2 Properties of Water.

Properties of Water Chapter POLARITY Uneven distribution of charge The oxygen end of the water molecule has a slightly negative charge while the.

Composition of Water Two Hydrogen atoms and One Oxygen atom Two Hydrogen atoms and One Oxygen atom The molecular formula for water is H 2 O. The molecular.

Essential Question What’s so great about water?. Properties of Water Single most abundant compound in most living things. Water expands as it freezes.

Protons, Electrons, and Neutrons Charges:  Electrons - Negatively charged  Protons - Positively charged  Neutrons – Neutral (no charge)

Bonds Ionic Covalent Hydrogen. Bonds Ionic Transfer electrons Form between ions (+/-) Covalent Share electrons Weaker than ionic 2 types – Polar – Nonpolar.

Cohesion Water molecules are attracted to other water molecules. The oxygen end of water has a negative charge and the hydrogen end has a positive charge.

Properties of Water. A Polar Molecule Water is made up of two hydrogen atoms (H) and one oxygen atom (O). (H 2 O) Electrons are shared in covalent bonds.

The Nature Of Water By Mary Dann. Physical Properties of Water Water is necessary for life and is the most abundant component of living things Most marine.

Water. Water  Chemical Formula H 2 O H 2 O 2 Hydrogen Atoms 2 Hydrogen Atoms 1 Oxygen Atom 1 Oxygen Atom.

Water & Solutions Water is a unique molecule necessary for life –Found in all cells –Surrounds all cells.

Chemistry of Water.

Water Properties.

Water and Cool Stuff Ubiquitous in Nature Hydrogen Bonding

What do you think are some useful characteristics of water?

The Properties of Water

Properties of Water.

Properties of Water.

Adhesion, Cohesion, Surface Tension

Properties of Water Essential Standard

KEY CONCEPT Water’s unique properties allow life to exist on Earth.

Basic Chemistry and Water

Properties of Water.

Bell Ringer Why is water necessary for life?.

Chemistry of Life Properties of Water.

Chapter 2 The Chemistry of Life.

Properties of Water freezing condensation melting cohesion

The Essence of Life.

Water properties.

Different ways that water mixes with different substances

Basic Chemistry and Water

Cohesion Water molecules will stick to other water molecules, the reason why water forms droplets.

Chemistry of Life Properties of Water.

The Chemistry of Life Properties of Water.

The Extraordinary Properties of Water

ATOMS Proton (+) Neutron Electron(-) - +

Wonders of Water Miller and Levine 2-2.

Chemistry of Biology.

Chapter 2-2: Properties of Water

Sec. 4: Polar Bonds and Molecules

2.2 Properties of Water.

Properties of Water.

Water, Water, Every Where!!!

Water 2:2 The single most abundant compound in most living things.

Different ways that water mixes with different substances

Water 2:2 The single most abundant compound in most living things.

Section 3 Water and Solutions

Properties of Water Vocab

Unit 1: Chemistry of Life

2.1 Properties of Water.

Cohesion Water molecules will stick to other water molecules, the reason why water forms droplets.

Properties of Water.

How Do The Properties of Water Support Life on Earth?

Presentation transcript:

Water, A Polar Molecule Moretz, 2012 Biology

Water Most abundant compound in living things. Liquid on most of Earth’s surface. Expands when it freezes.

Water Water has a total charge of ZERO (10 neutrons + 10 protons + 10 electrons = no charge) Water is POLAR = charges are not evenly distributed throughout molecule.

Water & Polarity POLARITY: Oxygen has a slight negative charge in water. Hydrogen has a slight positive charge in water.

Hydrogen Bonds Intermolecular force between polar molecules. Ex.

Hydrogen Bonds Worksheet Label the positively charged region in water and the negatively charged region in water. Draw another water molecule near the original water molecule. Be sure to orient the water molecule correctly. Add 3 more water molecules.

Hydrogen Bonds 7 water molecules 7 oxygens 14 hydrogens

Properties of Water Cohesion Attraction between a water molecule and other water molecules. Surface tension – cohesion causes water molecules on the surface of water to be drawn inward.

Cohesion

Surface Tension

Properties of Water Adhesion Attraction between water molecules and other substances. Capillary action – adhesion causes water to rise up in a narrow tube.

Capillary Action