Classification Of Matter Flashcards
What are some properties of matter? (6)
Can be strong and resist bending or weak and bend easily.
Conduct heat-thermal conductors, conduct electricity-electrical conductors.
Brittle materials break easily. Malleable materials can easily be formed into different shapes. Ductile materials are able to be formed into long wires.
Magnetic materials have a magnetic field.
Density is the mass per unit volume.
Boiling and melting points of substances.
What are properties that make a mixture a mixture?
Not in a fixed ratio.
Keep their physical properties.
Can be separated by mechanical means.
What is a heterogeneous mixture?
A mixture that consists of two or more substances. It is non-uniform and the different components of the mixture can be seen.
What is the name of the heterogeneous mixture is the phase of matter is liquid-liquid?
Emulsion
What is the name of the heterogeneous mixture is the phase of matter is solid-liquid?
Suspension
What is the name of the heterogeneous mixture is the phase of matter is gas-liquid?
Aerosol
What is the name of the heterogeneous mixture is the phase of matter is gas-solid?
Smoke
What is a homogeneous mixture?
A mixture that is uniform, and where the different components of the mixture cannot be seen.
What is an element?
A substance that cannot be broken down into other substances through chemical means.
What is a pure substance?
Any material that is not a mixture, including elements and compounds.
What is a compound?
A substance made up of two or more different elements that are joined together in a fixed ratio.
What’re some properties of metals? (7)
Good thermal conductors.
Good electrical conductors.
Shiny metallic lustre.
Malleable and ductile.
Usually have high melting point.
High density.
Only three metals (iron, cobalt and nickel) are magnetic, the others are non-magnetic.
What’re some properties of non-metals? (4)
Poor thermal conductors.
Good electrical insulators.
Not malleable.
Not ductile.
What are metalloids?
Semi-metals.
Have mostly non-metal properties.
What is one of metalloids distinguishing characteristics?
Their conductivity increases as their temperature increases.
