| A | B |
|---|
| compound | a substance made up of 2 or more elements chemically combined |
| water | a compound formed when 2 elements of hydrogen combine with 1 elelment of oxygen |
| sugar | a compound made when the elements of carbon, hydrogen and oxygen are combined |
| salt | formed when sodium and chlorine are chemically combined |
| properties | the properties of a compound are very different than the elements that formed it |
| sugar | to break down the compound sugar you hEAT it;hydrogen and oxygen are released into the air and carbon remains |
| molecule | smallest part of a compound that has all the properties of the compound |
| diatomic molecule | contains 2 atoms of the same element joined together |
| hydrogen and oxygen | 2 elements that are always found in diatomic molecules |
| mixture | 2 or more substances that have been combined but not chemically changed |
| physical means | a mixture cna be separated by physical means |
| evaporation and filtering | two ways of separating a mixture |
| ionic bond | fromed when atoms gAIN or LOSE electrons |
| opposites attract | think of holding your pointer finger up on your left and right hand and then bringing them together |
| negative ion | when an atom GAINS electrons |
| positive ion | when an atom LOSES electrons |
| covalent bond | forms when atoms SHARE electrons; think of mickey mouse |
| organic compounds | contain the element CARBON |
| organic chemistry | the study of organic compounds |
| plastic and most living things | examples of organic compounds |
