an introduction to matter describing matter chapter 1 section 1
TRANSCRIPT
An Introduction to Matter
Describing Matter
Chapter 1
Section 1
Matter
• Anything that…– has mass – takes up space
• Air• Plastic• Metal• Wood• Glass• Paper• Cloth• Foam• Ceramic
Chemistry
• Study of the properties of matter and how matter changes
Substance
• A single kind of matter that is pure
• It has… – A specific composition– Specific properties
Types of Matter
• Mixtures– Consists of 2 or more
substances• Sand• Solutions
– Salt water– Lemonade
• Pure Substances– Made up of only 1 kind of
matter• Compounds
– NaCl» Salt
– H2O» Water
– C6H12O6
» Glucose (sugar)• Elements
– Can not be broken down any smaller
– Pt» Platinum
– Au» Gold
– Ag» Silver
Mixtures
• Homogeneous Mixture– Consistent throughout
• Sugar
– Solutions• Air
– N2, 78%
– O2, 21%
• Heterogeneous Mixture– Not consistent
• Sand• Salad
States of Matter
• Solid– Ice cube
• Liquid– Water
• Gas– Water vapor
• Plasma – sun
Properties of Matter
• Hardness– Hard/Soft
• Texture– Rough/Smooth
• Shape• Temperature
– Hot/Cold• Flammability• Size• Color• State
– Liquid/Solid/Gas
Boiling Point
• Celsius– 100 oC
• Fahrenheit– 212 oF
• Liquid Gas
Melting Point
• Celsius– 0 oC
• Fahrenheit– 32 oF
• Solid Liquid
What Makes Seawater Undrinkable?
• Too much salt – (NaCl, Sodium
chloride)
• Your body become dehydrated
Agrochemicals
• Chemicals made from crops instead of petrochemicals from petroleum