MC chpt. 4
Terms
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- an ex. of a common compound is
- carbon dioxide
- compounds consist of two or more elements
- combined in def. proportions by mass
- when a chemical union occurs
- new properties appear
- an element that shows metallic properties is
- iron
- when hydrogen combines with oxygen to form water, the proportion of hydrogen to oxygen by mass is 1 to
- 8
- the smallest particle of an element that can enter into chemical change is
- an atom
- to represent a chemical compound, scientists use a
- formula
- the number of atoms of oxygen in the formula C6H1206 is
- 6
- when several substances are placed together but dont combine chemically, they form
- a mixture
- sand can be seperated from a mixture of sand, salt, and water by the process of
- filtiration
- a mixture of iron fillings and sulfur can be separated easily by
- using a magnet