click below
click below
Normal Size Small Size show me how
Definitions
| Question | Answer |
|---|---|
| Diatomic Molecules | when 2 of the same atoms are combined |
| Molecular Compound | when non-metals combine |
| Ionic Compounds | when metal combines with a non-metal |
| 5 indications a chemical change has occurred | 1. new substance has appeared 2. gas or heat given off 3. bubbles of gas are formed 4. a solid material, called a precipitate forms in liquid 5. a new scent can be smelled |
| What is mass measured in? | grams (g) |
| What is volume measured in? | g/cm3 (solid) g/mL (liquid) |
| Density: definition and what is it measured in? | a measure of how much mass is contained in a given unit volume of a substance, g/cm3 (solid) g/mL (liquid) |
| Ductility: definition | the ability to be stretched into wires |
| Malleability: definition | the ability to be hammered or bent into different shapes |
| Viscosity: definition | the degree to which a fluid resists flow |
| Solubility: definition | if something will mix |
| Hardness: definition | how easily a substance is scratched or dented |
| Taste: definition | is it sweet, sour, salty, bitter...etc |
| Clarity: definition | amount of light passing through the object |
| Luster: definition | how a substance reflects light "shininess" |
| Odour: defintion | the smell of it |
| Texture: definition | the appearance of the surface of an object |
| Colour: definition | the tint in the appearance of something |
| State: definition | is the substance a solid, liquid, or gas at room temp. |