Matter

• matter- has mass and anything that occupies space or also known as volume
• physical properties- density, length, weight, odor, malleability, electrical conductivity, melting/boiling point
• conductivity- ability to transfer heat
• insulator- does not allow electricity to transfer
• intensive- properties do not depend on the amount of matter in a sample
• extensive properties depend on how much matter a sample contains
• • Length, weight, example of extensive property
• density= mass/volume
• density- intensive property
• intensive property- odor, malleability, electrical conductivity, melting and boiling point
• chemical properties of matter- can only be measure of observed as matter transforms into a particular type of matter
• chemical property- example: reactivity, flammability, ability to rust, toxicity, acidity, reactivity of various types, heat of combustion
• acid- less than 7, base- more than 7, neutral- 7
• Reactivity – the tendency of matter to combine chemically with other substances
• Flammability – the tendency of matter to burn is referred to as flammability. As matter burns, it reacts with oxygen and transforms into various substances. A flammable matter is anything like wood.
• Toxicity – the extent to which chemicals may harm an organism.
• Acidity – ability to react with an acid is a chemical property. Some metals form compounds when they react with difference acids. Acids react with bases to create water, which neutralizes the acid.
• solid- is a substance that has a fixed shape and volume and does not flow
• liquid- is a state of matter in which particles are close together and move around each other
• gas- is a state of matter in which particles are far apart and move around a lot.
• plasma- is an ionized gas, example: stars, sun
• solid>liquid= melting
• liquid>solid= freezing
• liquid>gas= vaporization
• gas>liquid= condensation
• gas>plasma= ionization
• plasma>gas= deionization
• solid>gas= sublimation
• gas>solid= deposition
• density- The degree of compactness of a substance. (Mass per unit volume)
• Explain what happens to density when an object is cut in half.- The density remains the same
• What happens to an object that has a greater density than water?- An object that has a greater density than water will sink
• Calculate the volume of a liquid with a density of 0.11g/ml and a mass of 176 g.= 1600
• How does heat impact the states of matter?- When heat is added to a substance the particles move faster
• Give three examples of a physical change.- Melting an ice cube, dissolving sugar in water, crumpling a sheet of paper
• Give three examples of a chemical change.- C. Burning wood, Digesting food, Mixing acid and base
• Name and describe the six types of phase changes.- Freezing: liquid to solid, Melting: Solid to liquid, Condensation: Gas to liquid, Vaporization: Liquid to gas,

  Sublimation: Solid to gas, Deposition: Gas to solid
• The phase change that occurs when a gas is cooled and changes into a solid is known as- deposition
• When isopropyl alcohol was spilled over the counter top and quickly disappeared, what phase change occurred?- evaporation
• A student noticed frost was on the ground at 6:30 a.m. but noticed it disappeared by 8:30 a.m. What phase change was responsible for turning the frost into water vapor? - sublimation