Salinity Salt- ionic compound composed of a cation (+) and and anion (-) – Ionic bond- atoms transfer electrons to form electrostatic attraction.

Slides:

Advertisements

Similar presentations

Section 17.3 Homogeneous Aqueous Solutions

Advertisements

Types of chemical compounds

The attraction between a hydrogen atom on one water molecule and the oxygen atom on another Hydrogen bond.

Physical and Chemical Properties of Water. Do Now! List the various ways that water is used. Using prior knowledge, predict the % of typical water usage.

Chapter 4. H 2 O, The Universal Solvent Much of chemistry that affects each of us occurs among substances dissolved in water. Virtually all chemistry.

Objectives To understand the process of dissolving

General Chemistry Element –composed of atoms Nucleus –protons (+) and neutrons (0) Electrons (-)

1 Chapter 7 Ocean Chemistry About solutions and mixtures A solution is made of two components, with uniform (meaning ‘the same everywhere’) molecular properties:

Seawater Chemistry 70% of the Earth is covered by ocean water!

(Section 2.1). Bonding – Electrostatic forces of attraction between pairs of atoms or ions. Compounds – Two or more elements that combine to form new.

Solubility and Solutions. Water is the most abundant liquid on the earth and is necessary for all life. Because of water's great dissolving properties,

Chemical and Physical Features of Seawater and the World Ocean

And Neutralization. Acidic or basic is a chemical property Mixing them can cancel out their effects or neutralize them But 1st-water ionizes Water molecules.

ACIDS, BASES, and SALTS. An acid is a(n) ________________ compound. Most molecular compounds, if they are soluble in water, dissolve differently from.

Inorganic Chemistry – Chemical Bonding. Chemical Bonding (1). When two or more atoms react ---  chemical bond – Valence electrons – Form Ionic bonds.

General Chemistry Element –composed of atoms Nucleus –protons (+) and neutrons (0) Electrons (-)

Lesson 2 part 2. Heterogeneous Mixtures Parts of the mixture are noticeably different from one another Homogenous Mixtures Evenly distributed, hard to.

ACIDS, BASES, and SALTS.

1.  Chemists believe that many chemical compounds contain ions  Common Properties of these compounds: ◦ High melting point (ex: salt melt at 800*C)

Section 7.2. Forming Ionic Compounds Since ions have charges, ions with opposite charges will be attracted to each other. The force that pulls them together.

© 2011 Pearson Education, Inc. CHAPTER 5 Water and Seawater.

Biology Basic Chemistry – Chapter 2 Section 1 and 2.

Chapter 2: Atoms and Molecules of Ancient Earth Life requires about 25 elements carbon (C) oxygen (O) hydrogen (H) nitrogen (N)

Lesson 3.2: Salinity *Refer to Chapter 8 in your Textbook.

Videos from sea floor s s

Videos from sea floor s s

CP Biology  What does it mean to say water is polar?  How does water’s polarity help it with hydrogen bonding?  How does hydrogen bonding.

Chapter Seven: Ionic Bonds and Ionic Compounds. Formation of Ionic Compounds Compounds composed of cations and anions are called ionic compounds They.

Atoms and Bonding Chapter 6.1 cont.... Compounds and Bonding A compound is a substance that is composed of atoms of two or more different elements that.

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.

ACTIVITY 50-THE CHEMISTRY OF ACIDS AND BASES You need:  Your book  Binder to take notes (or notebook)  Venn diagram you created in Act 48 (this may.

BONDING. WHY ATOMS COMBINE -1 All atoms want a full outer shell Some atoms will lose electrons to empty their shells These become positively charged ions.

Combining Matter Chapter 3 Section 2. Compounds Compounds are substances composed of atoms of two or more elements combined chemically Represented by.

Bonding Review!. What are Valence electrons? Valence Electrons Valence electrons are the electrons in the outermost s- and p-orbitals that can be involved.

Chemical Properties of Seawater. I. The water molecule 1.Made of two hydrogen atoms and one oxygen atom.

Bond. Ionic Bond Unit 4: Ionic Compounds Formation of Ionic Compounds Ionic compounds are composed of cations (metals) and anions (nonmetals). Although.

SOLUTIONS DAY 2. INTRODUCTION Did you ever hold a piece of candy on your tongue for a long period of time because you wanted to make it last? What happened?

Basic Chemistry Interactions between atoms—chemical bonds –Chemical reaction Interaction between two or more atoms that occurs as a result of activity.

Chapter 2 Section 2 Properties of Water

Chemical bonds and molecular models.  Compounds are composed of chemical bonds  Bonds are result of interactions between particles- electrons and protons.

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.

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

THE NATURE OF WATER CHAPTER 6. THE WATER PLANET WATER COVERS ABOUT 71% OF THE EARTH’S SURFACE. PROVIDES MORE THAN 99% OF THE BIOSPHERE THE VAST MAJORITY.

Acid-Base Properties of Salt Solutions Chapter 8.6.

6.3 Water and Solutions.

2.1 Ionic Compounds.

Review of Basic Chemistry

Chemistry Essential Standard

7.4 – NOTES Solution Concentration

Water – The Universal Solvent

Chapter 8 The Nature of Water

Chapter 7: Ocean Chemistry Insert: Textbook cover photo.

Ionic Bonds and Compounds

Lesson 3.2: Salinity *Refer to Chapter 8 in your Textbook.

Based on electron shift

70% of the Earth is covered by ocean water!

On a Scale of 0 to 14 pH Notes.

Arrhenius Acids and Bases

Chapter 7 Solutions 7.1 Solutions.

Chemistry of Biology.

Seawater Chemistry.

Water, Water, Everywhere

The Ocean’s Composition and Structure

Surface tension Cohesion Adhesion Weathering Solvent Solute Salt

2-2 Properties of Water.

Chapter 2-2 PROPERTIES OF WATER.

2-2 Properties of Water.

Water Single most abundant compound in organisms.

Presentation transcript:

Salinity Salt- ionic compound composed of a cation (+) and and anion (-) – Ionic bond- atoms transfer electrons to form electrostatic attraction

Solutions – Solution- molecules of one substance homogeneously dispersed among molecules of another substance Solvent- more abundant substance (does the dissolving) Solute- substance being dissolved – Dissociation- when salt dissolves its ions are pulled apart by water molecules –

Salinity- total concentration of dissolved salts (expressed in parts per thousand (ppt, % o) Salt cycle- how salt is added or removed from ocean – Added by runoff, erosion of coastal rock, and hydrothermal vents – Removed by certain biological and chemical factors – The ocean is in chemical equilibrium because these processes balance out so the average salinity does not change

Ocean’s salinity varies very little from 35 ppt Brackish- freshwater mixes with saltwater ( ppt)