Study guide flashcards
The sulfate ion is an example of __________ because it contains two different elements
Polyatomic ion
A __________ is one that contains two, and only two, elements
Binary compound
CaSo4 x 2H2O is a __________ because it always contains a fixed ratio of water molecules to calcium and sulfate ions
dihydrate
A chemist can often use the process of __________ to separate two liquids from each other
distillation
The sodium ion (Na+) is said to have a __________ of 1+ because that is the charge on a sodium ion
Oxidation number
A compound such as methane that contains carbon is generally classified as a __________
Organic compound
Sodium carbonate is a __________ substance because it takes on water molecules, to which it becomes chemically bonded
hygroscopic
Oxygen and ozone are __________ , or different forms of the same element
allotropes
When copper sulfate pentahydrate is heated, water is driven off, leaving behind __________ copper sulfate
annyous
Methane and propane are examples of __________ because they contain only carbon and hydrogen
hydrocarbons
If left outside on a table too long a __________ substance, such as calcium chloride, will take on enough water to form a liquid solution
deliquescent
In the compound Al2O3, the simplest ratio of atoms in the compound, called the __________, is two atoms of aluminum to three atoms of oxygen
formula unit
A ___________ is one in which atoms are held together by covalent rather than ionic bonds
molecular compound
In general, compounds that do not contain carbon are classified as __________
Inorganic compounds
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