| What is a chemical change? | the formation of a new substance with different properties; cannot be undone by physical means |
| What is a chemical formula? | a representation of a
compound in which the
elements are
represented by their
symbols and subscripts
represent the number of
atoms of each element |
| What is a chemical symbol? | representation of the
name of an element;
written as a capital
letter or a capital letter
followed by a lowercase
letter(s) |
| What is a compound? | a pure substance made
by chemically
combining two or more
elements; represented
by a chemical formula |
| What is an element? | a pure substance that
cannot be broken down
chemically into simpler
substances |
| What is a physical change? | change which alters the
physical properties of a
substance without
changing its identity |
| What is precipitate? | the solid that is formed
as a result of a chemical
change |
| What is a pure substance? | a substance that is not
mixed with any other
substance |
| What is a subscript? | the number written tothe right and slightlybelow an element in achemical formula;represents the numberof atoms of an elementpresent in a chemicalformula |
