Ch 3 matter properties and changes

Chapter 3: Matter—Properties and Changes Section 3.1 Properties of Matter

What is matter? ,[object Object],[object Object]

Now that you’re an expert, which of the following is matter? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Matter Not Matter

There is so many different kinds of matter, that we need to organize it. ,[object Object],[object Object],[object Object],[object Object]

Physical Properties of Matter ,[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],Physical Properties of Matter: Two Types

Chemical Properties ,[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Physical Chemical Properties Properties

Classify each as a physical or chemical property: ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],States of Matter

States of Matter ,[object Object],[object Object],[object Object]

States of Matter ,[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],States of Matter

Physical Change ,[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object]

Chemical Changes ,[object Object],[object Object],[object Object]

becomes becomes The substance has changed.

Evidence of Chemical Change 1. Color change 2. Energy change: absorbed or released

3. Odor changes or production 4. Gas production 5. Precipitate formation

Classify each as a physical or chemical change: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Law of Conservation of Mass ,[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object]

When you burn a big pile of wood, why do you only end up with a tiny pile of ashes?

In an experiment, 10.00 g of red mercury (II) oxide powder is placed in an open flask and heated until it is converted to liquid mercury and oxygen gas. The liquid mercury has a mass of 9.26 g. What is the mass of oxygen formed in the reaction?

Practice problems—pg. 65 #6, 7, 9 To collect ---- pg 83 #63,64,65

Section 3.3 Mixtures of Matter

Types of Mixtures ,[object Object]

[object Object],[object Object],Types of Mixtures

Types of Solutions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Separating Mixtures ,[object Object]

[object Object],Separating Mixtures

Section 3.4 Elements and compounds

Elements ,[object Object],[object Object],[object Object]

Dmitri Mendeleev--1869 -Organized the known elements into a table of rows and columns based on their similarities and masses.

Periodic table ,[object Object],[object Object],[object Object]

Compounds ,[object Object],[object Object],[object Object]

Dirt, blood, milk Lemonade, gasoline, steel Oxygen, gold, iron Salt, baking soda, sugar Matter Mixtures Pure substances Heterogeneous Mixtures Homogeneous Mixtures Elements Compounds

Chemical symbols ,[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],Compounds

[object Object],[object Object],[object Object],Compounds Hydrogen—a colorless, tasteless gas Oxygen—a colorless, tasteless gas

Sodium chloride ,[object Object],[object Object],Chlorine—poisonous, pale, green gas Sodium—a highly reactive element that fizzes in water

Law of Definite Proportions ,[object Object],[object Object],[object Object],[object Object]

To find percent by mass: ,[object Object],[object Object]

Analysis of sugar: 20.0 g sugar 500.0 g sugar Carbon 8.44 g 42.2% Hydrogen 1.30 g 6.5% Oxygen 10.26 g 51.30% Carbon 211.0 g 42.2% Hydrogen 32.5 g 6.5% Oxygen 256.5 g 51.30%

Therefore… ,[object Object],[object Object]

A 78.8 g sample of an unknown compound contains 12.4 g of hydrogen. What is the percent by mass of hydrogen in the compound? ,[object Object],[object Object]

Practice problems—pg. 76 #21-24 To Collect Pg 77 #s25-30

Law of Multiple Proportions ,[object Object]

Carbon monoxide/carbon dioxide O= C= O= C= 1 1 2 1 CO CO 2

Copper (I) chloride Copper (II) chloride

Ch 3 matter properties and changes

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Ch 3 matter properties and changes