quarter 1 Flashcards
what are the seven diatomic elements?
Hydrogen, Nitrogen, Fluorine, Oxygen, Iodine, Chlorine, Bromine. [ mnemonic: Have No Fear Of Ice Cold Beer ]
These are physical properties that doesn’t depend on the amount of substances present.
Intensive Properties
These are physical properties that vary depending on the amount of substances present in the sample.
Extensive Properties
_____ properties cannot be changed by any means.
Intensive
______ properties can be changed.
Extensive
Mass, shape, and volume are examples of ____ property.
Extensive, because it changes depending on the amount of substance.
Color, temperature, and density are examples of ___ property.
Intensive, it doesn’t matter how much substance there is.
Why is density an intensive property?
Because it doesn’t matter how much water, or substance there is. The range of densities is very narrow, therefore it is an intensive property.
How will you describe the relationship of mass and volume?
They are directly proportional, as mass increases, the volume also increases.
a ____ is a pure chemical substance made up of the same atom.
Element
Compounds are made up of two or more atoms/elements that are chemically combined in a _____ ratio.
fixed ratio
What is the difference between elements and compounds?
Elements = same atom, Compounds = 2 or more atoms
Diamonds are ______
(are a girl’s best friend) An example of elements
Sodium Chloride is an example of ____
Compounds
Carbon Dioxide is an example of ___
Compounds
