Terminology
The study of matter, its properties, and its changes.
What is Chemistry?
Name three compounds in the room.
Variable. Ex: What are water, wood (cellulose), flesh?
Ocean water is an example of it.
What is a heterogeneous mixture?
Color, temperature, radioactivity, boiling point, and odor are examples of it.
What is intensive properties?
The smallest particle of an element.
What is an atom?
Substances that cannot be chemically broken down into simpler substances.
What is an element?
A gold ring is an example of it.
What is an alloy? What is a homogeneous mixture?
Name 3 physical changes of matter.
Variable, what is evaporation, sublimation, condensation, deposition?
Anything that occupies space and has mass.
What is the matter?
Sugar, water and table salt are examples of it.
What are compounds?
Name three ways (processes) to separate mixtures.
Variable. Ex: What distillation, filtration, decantation?
A piece of paper burning is an example of it.
What is a chemical change? What is a flammability? What is a chemical property?
Substances composed of two or more elements in definite proportions.
What are compounds?
Name three elements in the room.
Variable, but must be in the periodic table. Ex: What are Oxygen, Nitrogen, Hydrogen, Carbon, Iron?
Made of multiple substances but the composition varies throughout it.
What is a heterogeneous mixture?
These properties depend on the amount of matter.
What are extensive properties?
Matter cannot be created or destroyed in an isolated system.
What is the law of conservation of matter?
Hydrogen gas, H2, is an example of it.
What is an element?
Usually a heterogenous mixture that scatters light.
What is a colloid?
Name three chemical properties.
Variable. Ex: What are flammability, toxicity, radioactivity, acidity, corrosiveness?