section 1
TRANSCRIPT
Describing Matter
Properties of Matter
Properties of Matter
• Matter can have many different properties or characteristics
Properties of Matter
• Matter can have many different properties or characteristics
• Chemistry is the study of how matter changes
Properties of Matter
• Matter can have many different properties or characteristics
• Chemistry is the study of how matter changes
• Substance is a single kind of matter and its specific properties
Properties of Matter
• Matter can have many different properties or characteristics
• Chemistry is the study of how matter changes
• Substance is a single kind of matter and its specific properties
• 2 kinds of property:
• Physical
• Chemical
Physical Properties of Matter
Physical Properties of Matter
• Characteristics of a pure substance that can be observed without changing it into another substance
Chemical Properties of Matter
Chemical Properties of Matter
• Characteristic of a pure substance that describes its ability to change
Elements
Elements
• Element is a pure substance that cannot be broken down.
Elements
• Element is a pure substance that cannot be broken down.
• Elements are the simplest substances
Particles of Elements- Atoms
Particles of Elements- Atoms
• The basic particle from which all elements are made
When Atoms Combine
When Atoms Combine
• Chemical bond is a force of attraction between 2 atoms
When Atoms Combine
• Chemical bond is a force of attraction between 2 atoms
• Molecules combine to form larger particles
Compounds
Compounds
• A compound is a pure substance made of 2 or more elements
Compounds
• A compound is a pure substance made of 2 or more elements
• Chemical Formula shows the element in the compound and ratio of atoms
Mixtures
Mixtures
• Made of 2 or more substances
Mixtures
• Made of 2 or more substances
• Mixtures differ from compounds in 2 ways
• Each substance in a mixture keeps its individual properties
• Mixtures are not combined in a set ratio
Mixtures
• Made of 2 or more substances
• Mixtures differ from compounds in 2 ways
• Each substance in a mixture keeps its individual properties
• Mixtures are not combined in a set ratio
• Heterogeneous Mixture: You can see the different parts
Mixtures
• Made of 2 or more substances
• Mixtures differ from compounds in 2 ways
• Each substance in a mixture keeps its individual properties
• Mixtures are not combined in a set ratio
• Heterogeneous Mixture: You can see the different parts
• Homogeneous Mixture: You cant see the different parts