Copia - 24-25 MATTER AND ITS PROPERTIES
Fabiola Pérez
Created on September 3, 2024
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Transcript
Physical and Chemical properties of matter.
chemistry
a) Identify Physical and Chemical properties of matter. b) Compare and contrast Extensive, Intensive properties of matter.
objectives:
Factual question:What is matter and how is it classified according to its function?
Anything that has mass and takes up space!Matter is constantly experiencing both chemical and physical changes
matter:
Is the study of the composition of matter, properties and the changes that it undergoes.
chemistry
element
It's a pure substance that cannot be broken down into simpler substances by physical or chemical means.
Example: Water (H2O), NaCl
A chemical combination of two or more different elements; can be broken down into simpler substances by chemical means and has properties different from those of its component elements.
Compound
Used to refer to either an element or a compound - but not to a mixture because a 'substance' always has a definite composition.
Substance
Two or more atoms held together, and have a lack of electrical charge.
Molecule
- Characteristics or behavior of matter.
- Matter has observable and measurable properties.
- We can use them to identify substances.
- Two basic types of properties of matter are Physical properties and Chemical properties:
What are properties?
physical properties:?
Characteristic of matter that can be observed (using your senses) or measured without changing the sample's composition.They are 2 types: Extensive and intensive.
Intensive
Extensive
Chemical
Physical
Properties of matter
Properties that do not depend on the amount of substance present.
Properties that depend on the amount of substance present.
intensive
extensive
Weight: Gravitational force exerted on an object.
Mass: Amount matter in an object.
extensive properties
They depend on the amount of substance
Mass vs weight
extensive properties
Length:Distance between two points
Volume: Amount of space occupied by an object.
extensive properties
They depend on the amount of substance
Properties that do not depend on the amount of substance present.They are used to identify a substance, for example DENSITY and STATES OF MATTER
intensive properties
The measurement of how much mass of a substance is contained in a given volume.
density
INTENSIVE properties
States of matter
Ductility
Ability to be drawn into thin wires.
Malleability
Ability to be beaten into thin sheets.
Luster
Is the property of minerals that describes how light is reflected.
intensive properties
Is the ability or capacity of a solute to be dissolved by a solvent. Although it depends on other factors such as temperature and pressure
SOLUBILITY
Conductivity
Ability to allow the flow of energy or electricity.
intensive properties
Temperature in which a substance changes its state from liquid to gas
Temperature in which a substance changes its state from liquid to solid
Temperature in which a substance changes its state from solid to liquid
Melting POINT:freezing POINT: boiling point:
intensive properties
- Color
- Odor
- Taste
- Magnetism
intensive properties
chemical properties:?
Are characteristics involved when a substance interacts with another substance to change its chemical make-up or identity.Flammability, toxicity, reactivity, acidity, rusting or oxidation.
chemical properties:?
CAN YOU MENTION 3 DIFFERENT PROPERTIES?
WHAT are the differences between extensive and intesive properties?