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

Slides:



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

Solutes, Solutions and Solvents Unique properties of water Chapter 2.2.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
2.2 Properties of Water TEKS 4B, 9A The student is expected to: 4B investigate and explain cellular processes, including homeostasis, energy conversions,
What makes water so special?
Properties of Water. Life depends on Hydrogen bonds in water Water is a polar molecule. – Polar molecules have slightly charged regions. – Nonpolar molecules.
Do Now Describe and draw a picture of a ionic bond
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
2.1 Atoms, Ions, and Molecules KEY CONCEPT All living things are based on atoms and their interactions. 4.
2.2 Properties of Water KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Atoms & Properties of Water Sections 2.1 & Atoms, Ions, & Molecules Key Concept: All living things are based on atoms and their interactions.
2.2 Properties of Water Water’s unique properties allow life to exist on Earth.
2.2 Properties of Water KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
2.2 Properties of Water KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
2.2 Properties of Water LEQ: How does water behave as a solvent? Reading 32.1, 2.3 Activator: connecting concepts –When sugars are broken down to produce.
Properties of Water. Learning Objectives  Discuss the unique properties of water.  Differentiate between solutions and suspensions.  Explain what acidic.
2.2 Properties of Water.
Water Basics Polar: part of the molecule is slightly positive… other part slightly negative – Oxygen (-) – Hydrogen (+) Hydrogen Bond: Positive Hydrogen.
Section 2.2 Properties of Water. Polar Molecules  molecules that have a slight positive region and a slight negative region Hydrogen Bond  an attraction.
Properties of H 2 O. KEY CONCEPT Water’s unique properties allow life to exist on Earth.
2.2 Properties of Water KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Concept Map: Re-create the Concept Map template to show how the following terms are related. Terms: Atoms Compounds Electrons Neutrons Protons These three.
2.2 Properties of Water KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Water & Solutions Water is a unique molecule necessary for life –Found in all cells –Surrounds all cells.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
The student is expected to: 4B investigate and explain cellular processes, including homeostasis, energy conversions, transport of molecules, and synthesis.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
6.3 Water and Solutions.
2.2 Power Notes Power Notes 37 PROPERTIES OF WATER Polar molecules:
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Pg. 12 RTW: Why do you think life depends on water?
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Chapter 2.2 Properties of Water.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Chemistry of Life Properties of Water.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
4 KEY CONCEPT All living things are based on atoms and their interactions.
Properties of Water Notes
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Chemistry of Life Properties of Water.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Why is this happening? Complete POE verbally.
Class Notes 2-2 Water and Solutions.
WOD: CAPITULATE kah PICH uh layt) v.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Water and Solutions 6.3.
BIOCHEMISTRY.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
2.1 Properties of Water.
2-2 Properties of Water.
Properties of Water.
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
LEQ: How does a hydrogen bond form?
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
What do you think are some useful characteristics of water?
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Presentation transcript:

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

Life depends on hydrogen bonds in water. Water is a polar molecule. Polar molecules have slightly charged regions. O H _ + Nonpolar molecules do not have charged regions. Hydrogen bonds form between slightly positive    hydrogen atoms and slightly negative atoms.

Hydrogen bonds are responsible for three important properties of water. high specific heat cohesion adhesion

Read, Discuss and write about the three properties Pg. 41

Many compounds dissolve in water. A solution is formed when one substance dissolves in another. A solution is a homogeneous mixture. Solvents dissolve other substances. Solutes dissolve in a solvent. solution

“Like dissolves like.” Polar solvents dissolve polar solutes. Nonpolar solvents dissolve nonpolar solutes. Polar substances and nonpolar substances generally remain separate.

Some compounds form acids or bases. An acid releases a hydrogen ion when it dissolves in water. high H+ concentration pH less than 7 more acidic stomach acid pH between 1 and 3

A base removes hydrogen ions from a solution. low H+ concentration pH greater than 7 bile pH between 8 and 9 more basic

Turn and Talk What are some common items that you use that may be acids? Why? What are some common items that you use that may be Bases? Why?

A neutral solution has a pH of 7. pure water pH 7

Think, write and discuss! What is the relationship between water and acids and bases?