Classification of Matter What is matter and how

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Classification of Matter What is matter and how do we as scientists categorize it?

Classification of Matter What is matter and how do we as scientists categorize it?

Matter Can Be Classified Matter Pure Substances Element Compound Mixtures Homogeneous (Solutions) Heterogeneous

Matter Can Be Classified Matter Pure Substances Element Compound Mixtures Homogeneous (Solutions) Heterogeneous

Matter l Anything that has mass and takes up space l Anything made from

Matter l Anything that has mass and takes up space l Anything made from atoms l Examples: Molecules ¡ Cells ¡ People ¡ Air ¡ Water ¡

Pure Substances versus Mixtures Matter is classified as either a pure substance or a

Pure Substances versus Mixtures Matter is classified as either a pure substance or a mixture Pure Substances Mixtures Every piece of matter is the same More than one type of matter mixed together

Elements versus Compounds Pure substances are either elements or compounds Elements Compound Every atom

Elements versus Compounds Pure substances are either elements or compounds Elements Compound Every atom is the same type of atom More than one type of atom chemically bonded together. Every molecule is the same.

Elements Single Atom Element Cannot be separated by chemical or physical processes Pure substance

Elements Single Atom Element Cannot be separated by chemical or physical processes Pure substance Every atom is the same Elements can be found on the periodic table!

Compounds Single Molecule Made of more than one type of atom bonded together Compound

Compounds Single Molecule Made of more than one type of atom bonded together Compound Pure substance Every molecule is the same Can be separated by chemical reactions only

Mixtures can be classified as homogeneous or heterogeneous Homogeneous (aka “solution”) Heterogeneous It looks

Mixtures can be classified as homogeneous or heterogeneous Homogeneous (aka “solution”) Heterogeneous It looks the same throughout Different matter can be seen (chunks, bubbles, floaties, layers, etc. )

Mixtures Element Compound >1 different type of matter Can be separated chemically or physically

Mixtures Element Compound >1 different type of matter Can be separated chemically or physically Mixture Not a pure substance

Mixture Possibilities l Mixtures can be any combination of solids, liquids and gases: Solid-solid:

Mixture Possibilities l Mixtures can be any combination of solids, liquids and gases: Solid-solid: Medicine tablet ¡ Solid-gas: Popping candy ¡ Solid-liquid: Ice water ¡ Liquid-liquid: Lemon water ¡ Gas-Liquid: Carbonated water ¡ Gas-Gas: Air ¡

Let’s Practice Example: Determine if each is element, compound, homogeneous or heterogeneous mixtures Tin

Let’s Practice Example: Determine if each is element, compound, homogeneous or heterogeneous mixtures Tin foil Copper pipe Concrete Carbon tetrachloride Sports drink

Let’s Practice Example: Determine if each is element, compound, homogeneous or heterogeneous mixtures Tin

Let’s Practice Example: Determine if each is element, compound, homogeneous or heterogeneous mixtures Tin foil Element Copper pipe Element Concrete Heterogeneous mix Carbon tetrachloride Compound Sports drink Homogenous mix