| A | B |
|---|
| Chemistry is the study of | matter and its changes. |
| The first real chemist | Robert Boyle |
| Matter is anything that has | mass and volume |
| The atomic number of an element represents | the number of protons in an element |
| Mixtures | can be seperated |
| Solutions | cannot be separated |
| Examples of mixtures | flour and water & sand and iron |
| Examples of solutions | Koolaid & Suicides |
| The number of elements known today | 118 |
| A compound is made of | two or more elements |
| Examples of compounds | water, sugar, sodium chloride, iron oxide, and carbon dioxide |
| Three ways you know a physical change has occurred in matter | a change in state, size, and matter |
| The strongest acids will have a pH level of | 0-1 |
| The strongest bases will have a pH level of | 14-15 |
| Strong bases turn the cabbage juice indicator or litmus paper | bright blue |
| Products that are normally acidic are | juices |
| Products that are normally bases are | cleaners |
| Helium | He |
| Sulfur | S |
| Iodine | I |
| Nitrogen | N |
| H2O | Its name is water, it has 3 atoms, and is made of Hydrogen and Oxygen |
| Fe2O3 | Its name is iron oxide, it is made of iron and oxygen and it has 5 atoms. |
| C12H22O11 | Its name is sugar, it has 45 atoms, and contains carbon, hydrogen and oxygen |
| CO2 | Its name is carbon dioxide, it has 3 atoms and it contains carbon and oxygen |
| NaHCO3 | Its name is sodium chloride or baking soda, it has 6 atoms, and it contains Sodium, hydrogen, carbon, and oxygen |
| Fe | iron |
| Ca | calcium |
| H | hydrogen |
| Au | gold |
| Na | Sodium |
| Ir | Iridium |
| C | Carbon |
| O | Oxygen |
| Al | Aluminum |
| Cu | Copper |
| Ag | Silver |
| Hg | Mercury |
