Chapter7,les 5 Flashcards
1
Q
Chemicals change
A
A change that courses a new kind of matter to form with different properties.
2
Q
Compound
A
A substance formed by the chemical combination of two or more elements held together by chemical bonDs that cannot be separated by physical means.
3
Q
Chemical formula
A
A way to write compound name using symbols
4
Q
Subscript
A
A A number in a chemical formula that tells how many atoms A particular elements are in the compound
5
Q
Hydrocarbon
A
A compound made only of hydrogen and carbon
6
Q
Polymers
A
A large molecule that is made by repeating substance connected to each other by chemical bands
7
Q
Molecule
A
The combination of 2 or more atoms.
