1st QTR L2 GR7

• Anything that occupies space and mass


  matter
• what are the 2 classifications of matter?

  physical and chemical properties
• what are the 3 states of matter?


  solid liquid gas
• true or false? all matter is defined by a distinct set of properties


  matter
• can be observed or measures without changing the composition of matter

  Physical Properties
• Properties that can be observed when

  matter undergoes a chemical change


  chemical properties
• its examples are flammability, acidity, and other

  properties related to the reactivity of one

  substance to another

  chemical properties
• Including Color, Hardness, Malleability, Solubility, Density, Melting point, and even the boiling point

  physical properties
• Properties that are dependent on the

  amount of matter

  extensive property
• The greater the amount of matter, the higher the values of these properties

  extensive property
• its examples are mass, length and volume

  extensive property
• Properties that are independent of the amount of material Inherent to the substance and remain the same regardless of quantity

  intensive property
• Examples: Color, Temperature, melting point, and boiling point

  intensive property
• 2 changes of matter

  physical and chemical change
• occurs when matter changes in Shape, size, or state but not in composition

  physical change
• • Results in change in the composition of matter the original substance disappear and one new substance is formed

  chemical change
• can be classified as an elements or compounds

  pure substance
• A pure substance that are composed of only one type of Atom

  element
• simplest form of matter

  element
• can be written using symbols

  element
• what are the 3 types of elements

  metals, non metals and metalloids
• a good conductors of heat and electricity

  metals
• hard and lustrous

  metal
• most of the time solid except ____

  mercury
• most of the time solid, except mercury

  metals
• they are ductile

  metals
• generally exist as gases or solids in nature

  non-metals
• only liquid non-metal is Br which is 


  bromine
• only liquid non-metal is Br

  non-metals
• considered brittle

  non-metals
• both have the properties of metals and non-metals

  metalloids
• the best example of metalloids?

  Silicon
• a pure substance that consists of chemically combined atoms

  compounds
• example of compunds


  water H20
• are physically combined substances; or more substances

  mixtures
• what are the 2 types of mixtures?

  homogenous and heterogenous
• It is uniform in composition throughout

  homogenous mixtures
• has only 1 phase

  homogenous mixtures
• form more than 1 or more phase

  heterogenous mixtures
• distinguished visually and physically

  heterogenous