UNIT 1-Matter (3) PDF - General Chemistry Past Paper

GENERAL CHEMISTRY PRESENT THE REPRESENTATION OF THE PARTICLES OF MATTER IN EACH STATE. DISCUSS THE DIFFERENT PROPERTIES OF MATTERS AND PROVIDE EXAMPLES. DIFFERENTIATE AND PRESENT THE BEHAVIOR/ARRANGEMENT OF PARTICLES IN EACH CLASSIFICATION OF MATTER. DIFFERENTIATE HOMOGENOUS AND HETEROGENOUS MIXTUR...

GENERAL CHEMISTRY PRESENT THE REPRESENTATION OF THE PARTICLES OF MATTER IN EACH STATE. DISCUSS THE DIFFERENT PROPERTIES OF MATTERS AND PROVIDE EXAMPLES. DIFFERENTIATE AND PRESENT THE BEHAVIOR/ARRANGEMENT OF PARTICLES IN EACH CLASSIFICATION OF MATTER. DIFFERENTIATE HOMOGENOUS AND HETEROGENOUS MIXTURES.  CHEMISTRY IS THE STUDY OF MATTER AND THE CHANGES IT UNDERGOES.  WHY DO WE STUDY CHEMISTRY? 1. It helps you to understand the world around you. 2. Basic knowledge of chemistry helps you to read and understand product labels. 3. It is the heart of cooking. 4. Chemistry explains how things work.  MATTER IS ANYTHING THAT OCCUPIES SPACE AND HAS MASS  STATES OF MATTER How would you describe the molecules in each state of matter?  v e r y o r der l y l e s s o r der l y p a r t i cl es well a r r a ng ement o f a r r a ng ement o f s e p a r a t ed i n sp a ce p a r t i c les. p a r t i cles  fixed liquids, of variable shape and variable shape and shape but volume fixed volume volume. MATTER  PURE SUBSTANCES MIXTURES It is form of matter It is a combination that has a definite of two or more (constant) substances in which composition and the properties of distinct properties the substances preserve their distinct identities. PURE SUBSTANCES 1 COMPOUND a substance composed of atoms of two or more elements chemically united in fixed proportions. Note: Each color represents an atom 2 ELEMENT is a substance that cannot be separated into simpler substances by chemical means DIATOMIC ELEMENTS everage PURE SUBSTANCES WHICH REPRESENT COMPOUNDS? Note: Each color represents an atom MATTER  HOMOGENOUS HETEROGENOUS MIXTURE MIXTURE the the composition composition of the is not mixture is uniform the same throughout. SOLUTION A LIQUID MIXTURE IN WHICH THE MINOR COMPONENT (THE SOLUTE) IS UNIFORMLY DISTRIBUTED WITHIN THE MAJOR COMPONENT (THE SOLVENT) PICTURE, PICTURE A SOLID ELEMENT A SOLID ELEMENT A GASEOUS COMPOUND A GASEOUS COMPOUND A MIXTURE OF GASEOUS ELEMENT AND A GASEOUS COMPOUND A MIXTURE OF GASEOUS ELEMENT AND A GASEOUS COMPOUND DIATOMIC GASEOUS ELEMENT DIATOMIC GASEOUS ELEMENT PROPERTIES OF MATTER PHYSICAL PROPERTIES can be meas ured and observed without changing the composition or identity of a substance. Examples: odor, col or, vol ume, state (gas, liquid, or s ol id), density, melting point, and boiling point.  CHEMICAL PROPERTIES its ability to form new substances Example: wood burning, giving off heat and gases and leaving a residue of ashes  CHEMICAL PROPERTIES to observe this property we must carry out a chemical change GALLIUM METAL MELTS IN YOUR HAND.