Physical and Chemical Properties
What is the definition of chemical property?
A characteristic of a pure substance that describes its ability to change into different substances.
What is a solvent?
A chemical that dissolves things: the material in which you add a solute.
What is characteristic property?
A feature of matter that is specific to the substance and does not change with the amount of substance (ex. density, melting point, and boiling point).
What is the definition of physical property?
A feature or characteristic of matter which can be observed without changing the identity of the matter.
In chocolate milk, what is the solute?
Chocolate syrup
What are some examples of physical properties?
Examples are color, density, conductivity, smell, malleability, melting point, taste, ductility, boiling point, texture, solubility, and magnetism.
In tea, what is the solvent?
Hot water
What is electrical conductivity?
How well electricity travels through a substance.
What is thermal conductivity?
How well heat travels through a substance.
What is solubility?
How well one material dissolves in another material.
What is malleability?
How well something can be flattened or stretched without breaking.
What are reactions with acids?
How well something reacts with an acid (ex. bubbling, hydrogen released)
What is flammability?
How well something reacts with oxygen to produce heat/flame.
What is magnetism?
How well something sticks to a magnet.
What does insoluble mean?
It cannot be dissolved.
What tends to be malleable?
Metals
In chocolate milk, what is the solvent?
Milk
What are examples of chemical properties?
Some examples are flammability, reactions with acids, non-reactivity, etc.
In tea, what is the solute?
Tea leaves
What affects solubility?
Temperature, stirring, surface area, and amount of solute
What is ductility?
The ability to be stretched into a wire.
What is a solute?
The chemical being dissolved: the material you add to a solvent.
What is non-reactivity?
The failure to react.
What is boiling point?
The point at which a liquid becomes a gas.
What is melting point?
The point at which a solid becomes a liquid.
What are the main points to take away with regard to chemical reactions?
They always produce a new substance and most cannot be reversed.
What tends to not be malleable?
Woods and glass