| A | B |
|---|
| a mixture where different samples will not be exactly alike | Heterogeneous |
| All matter can be classified as: | Mixtures or Pure substances |
| Pure substance made of two or more elements chemically combined in a set ratio | Compound |
| The state of matter most commonly found in universe | Plasma |
| Gas changing to a liquid | Condensation |
| Definite Volume, Definite Shape | Solid |
| Definite Volume, Takes shape of container (not definite) | Liquid |
| No definite volume, no definite shape | Gas |
| List phases from lowest amount of energy to highest | Solid, Liquid, Gas, Plasma |
| In the gas state, molecules move _______. | Freely |
| Liquid changes to a gas | Evaporation |
| An example o a chemical property | Flammability |
| In a graph showing phase change of a liquid, temperature rises while the solid melts then levels out. What happens when its level, not chang9ng temperature even though you are still adding heat? | The heat is used to overcome the forces holding the molecules together, not to increase the temperature |
| Smallest unit of compound that can still be identified as compound | Molecule |
| Smallest unit of element that can still be identified as element | Atom |
| Substance that contains only one type of matter; a pure substance that cannot be broken down without changing properties | Element |
| Anything that has mass and takes up space | Matter |
| Mixture that contains more than one type of matter and is the same throughout | Homogeneous |
| Mixture that contains more than one type of matter and is different throughout | Heterogeneous |
| Temperature at which liquid water changes to solid ice | Freezing Point |
| Transformation of liquid to gas that serves as a COOLING process | Evaporation |
| Can be observed without changing identity or chemical makeup | Physical Property |
| Can only be observed by chemically changing the makeup of substance | Chemical Property |
| Both variables increase or decrease together | Directly related |
| When one variable increases, the other decreases | Inversely related |
| Law that states if pressure is constant, when temperature increases, volume increases | Charles's Law |
| Law that states if temperature is constant, when pressure increases, volume decreases | Boyle's Law |
| The effect of light scattering in a colloid or suspension | Tyndall effect |
| A type of mixture where all of the particles in a mixture are evenly distributed, but do not exhibit Tyndall effect | Solution |
| Part of a solution that does the dissolving | Solvent |
| Part of a solution that gets dissolved | Solute |
| Physical property that shows how well a substance can be dissolved | Solubility |
| A mixture where particles are suspended in another substance, exhibit Tyndall effect and do not settle out on their own | Colloids |
| A mixture where particles will settle out on their own and do exhibit Tyndall effect | Suspensions |
| Phase change from solid to a gas, without becoming a liquid | Sublimation |
| Phase change from gas to solid, without becoming a liquid | Deposition |
| Phase Change _____, ______ | Physical, Physical |
| How atoms combine to form molecules | Chemical Bonds |
| When thermal energy is released or removed from a gas, ithe particles will: | slow down and move closer together |
| Which state of matter would undergo changes in volume most easily? | Gas |
| Vaporization occurs when a liquid changes to a gas as thermal energy is added. What is the opposite of that, when thermal energy is removed from a gas? | Condensation |
| What happens to an inflated belloon at room temp is exposed to colder air? | volume of balloon decreases |
| The greater the speed of gas particles in a closed container, the greater the: | Pressure |
| The fact that silver can tarnish is hat type of property? | Chemical |
| The fact that NaCl dissolves in water is what type of property? | Physical |
| What are some signs that a chemical change or reaction has occurred? | Color, Precipitate forms, Gas forms, Temperature change, Oder, Energy absorbed or released |
| Which Law states that matter can never be created nor destroyed in any physical or chemical change? | Law of Conservation of Matter |
| Burning logs in the fireplace is what type of change? | Chemical |
| The resistance to flow is a physical property called: | Viscosity |
| Heat always moves from ____ to _____. | Hot, Cold |
