compounds Flashcards
1
Q
what is a molecule
A
two or more atoms bonded together
2
Q
what is a compound
A
substance made up of atoms from different elements chemically bonded together
3
Q
what is an example of compounds often having different properties to the elements they are made of
A
iron (magnetic) + sulfur (yellow) arrow iron sulfide (not magnetic but is grey)
4
Q
what is a chemical formula
A
formula that shows the proportion of atoms of each element in a compound
5
Q
2 rules of naming compounds
A
2 diff elements=ide
3+ elements and 1-oxygen=ate
