Elements Compounds Mixtures GOAL To tell the difference

  • Slides: 26
Download presentation
Elements, Compounds & Mixtures

Elements, Compounds & Mixtures

GOAL • To tell the difference between elements, compounds and mixtures and to give

GOAL • To tell the difference between elements, compounds and mixtures and to give examples of each

Matter • Matter is anything that has mass and takes up space. • Matter

Matter • Matter is anything that has mass and takes up space. • Matter is made up of many different things:

Substance A substance is a single kind of matter that has a specific composition

Substance A substance is a single kind of matter that has a specific composition and a specific set of properties - for example, color, melting point, texture. . .

Physical Properties are characteristics of substances that can be observed without changing it into

Physical Properties are characteristics of substances that can be observed without changing it into another substance. Examples: freezing or melting density hardness color

Chemical Properties are characteristics of pure substances that describe their ability to change in

Chemical Properties are characteristics of pure substances that describe their ability to change in to different substances.

Chemical Properties Examples: Does it burn? (Flammability) Does it combine with oxygen? (Iron does

Chemical Properties Examples: Does it burn? (Flammability) Does it combine with oxygen? (Iron does and forms rust. ) What will the substance react with?

Types of substances • Elements • Simplest, pure substance, one type of atom present

Types of substances • Elements • Simplest, pure substance, one type of atom present – O 2, Na, Fe, N 2

Elements There are over 100 elements in the periodic table. Elements all have unique

Elements There are over 100 elements in the periodic table. Elements all have unique symbols: Hydrogen: Lithium : Oxygen : Neon : H Li O 2 Ne

Types of substances • Compound • 1. Made of several different atoms (combined by

Types of substances • Compound • 1. Made of several different atoms (combined by chemical reaction) – Salt- Na. Cl – Sugar- C 6 H 12 O 6 • 2. Different properties from the elements that make them up

Types of substances • Mixtures • 1. Made of more than one kind of

Types of substances • Mixtures • 1. Made of more than one kind of molecule (many compounds) • 2. Can be separated or pulled apart by physically (they are NOT chemically combined) • 3. 2 types: – Heterogeneous – Homogeneous

Heterogeneous Mixtures • You can see the different parts. • • Examples: Salad Soil

Heterogeneous Mixtures • You can see the different parts. • • Examples: Salad Soil Bowl of Mixed Nuts

Types of substances • Heterogeneous • 1. Not the same throughout Mixtures • 2.

Types of substances • Heterogeneous • 1. Not the same throughout Mixtures • 2. Large easily seen particles that can be separated out • 3. Heterogeneous liquid mixtures known as suspensions – Settles after standing • 4. Tacos, salad, italian dressing, pebble/sand mixture

Homogeneous Mixture • They are so evenly mixed, you can not see the individual

Homogeneous Mixture • They are so evenly mixed, you can not see the individual parts. • Examples: • Salt dissolved in water • Brass is a mixture of copper and zinc

Types of substances • Homogeneous • 1. Appears same throughout • 2. Well mixed

Types of substances • Homogeneous • 1. Appears same throughout • 2. Well mixed Mixtures • 3. Won’t settle upon standing, • 4. Tiny unrecognizable particles – Solutions are homogeneous mixtures

Types of substances • Homogeneous Mixtures – Won’t settle out – Cloudy-Scatters light –

Types of substances • Homogeneous Mixtures – Won’t settle out – Cloudy-Scatters light – Particles mix, don’t dissolve • Milk, lotion, toothpaste

Types of substances • Homogeneous • Mixtures Metal Solutions a) Alloys- solid metal solutions

Types of substances • Homogeneous • Mixtures Metal Solutions a) Alloys- solid metal solutions b) Gold= copper and gold c) Brass= copper and zinc d) Sterling silver= silver and copper

Types of substances • Homogeneous • Mixtures Solutions a) One substance dissolved in another

Types of substances • Homogeneous • Mixtures Solutions a) One substance dissolved in another b) Tiny particles can’t be seen c) Best mixed d) Clear or transparent- light passes right through e) Ocean water, lemonade, air

Elements Compounds Mixtures Comparing Elements Compounds Mixtures ElementsElements Compounds Mixtures Comparing Elements Compounds Mixtures Elements
Mixtures Elements and Compounds Mixtures elements compounds nMixtures Elements and Compounds Mixtures elements compounds n
Mixtures Matter Substances Elements Compounds Mixtures Heterogeneous MixturesMixtures Matter Substances Elements Compounds Mixtures Heterogeneous Mixtures
Elements Compounds and Mixtures Elements Mixture Compounds ByElements Compounds and Mixtures Elements Mixture Compounds By
Elements Compounds and Mixtures Elements and Compounds ElementElements Compounds and Mixtures Elements and Compounds Element
Elements and Compounds Elements Compounds Mixtures Explain theElements and Compounds Elements Compounds Mixtures Explain the
Elements Compounds and Mixtures Chapter 7 Elements compoundsElements Compounds and Mixtures Chapter 7 Elements compounds
Separating Mixtures Mixtures Their Separation Mixtures elements andSeparating Mixtures Mixtures Their Separation Mixtures elements and
Compounds and Mixtures Compounds and Mixtures 3 SubstancesCompounds and Mixtures Compounds and Mixtures 3 Substances
Elements Compounds Mixtures Matter Mixtures Multiple substances PureElements Compounds Mixtures Matter Mixtures Multiple substances Pure
Elements Compounds Homogeneous mixtures Heterogeneous mixtures The followingElements Compounds Homogeneous mixtures Heterogeneous mixtures The following
Jeopardy Elements Compounds Homogeneous Mixtures Heterogeneous Mixtures PotpourriJeopardy Elements Compounds Homogeneous Mixtures Heterogeneous Mixtures Potpourri
Compounds and Mixtures Compounds 23 Compounds Examples ofCompounds and Mixtures Compounds 23 Compounds Examples of
Classifying Matter Compounds Mixtures Solutions Elements Combine CompoundsClassifying Matter Compounds Mixtures Solutions Elements Combine Compounds
Matter Atoms Compounds Elements mixtures Matter matters CompoundsMatter Atoms Compounds Elements mixtures Matter matters Compounds
Separation of Mixtures 1 1 Mixtures Many mixturesSeparation of Mixtures 1 1 Mixtures Many mixtures
Separating Mixtures Separating Mixtures Separating Mixtures Mixing sulphurSeparating Mixtures Separating Mixtures Separating Mixtures Mixing sulphur
Separation of Mixtures Separation of Mixtures Mixtures bothSeparation of Mixtures Separation of Mixtures Mixtures both
Matter MIXTURES HOMOGENEOUS AND HETEROGENEOUS MIXTURES Matter MixturesMatter MIXTURES HOMOGENEOUS AND HETEROGENEOUS MIXTURES Matter Mixtures
Mixtures and Separating Mixtures Mixtures Many of theMixtures and Separating Mixtures Mixtures Many of the
Separation of Mixtures Separation of Mixtures Mixtures bothSeparation of Mixtures Separation of Mixtures Mixtures both
Separation of Mixtures Separation of Mixtures Mixtures bothSeparation of Mixtures Separation of Mixtures Mixtures both
Separating Mixtures Two types of mixtures Homogeneous mixturesSeparating Mixtures Two types of mixtures Homogeneous mixtures
Separating Mixtures Separating Mixtures Separating Mixtures Mixing sulphurSeparating Mixtures Separating Mixtures Separating Mixtures Mixing sulphur