Study guide for 8.P.1:                                  Name: ____________________  Core: __________

  1. What are the 3 phases of matter and draw the arrangement of each.

  1. Density is Mass/Volume:  How can density help scientists identify an element?

  1. What are the parts of an atom and where are they located in the atom along with their charge?

  1.  What is the relationship between electrons and protons?

  1. What is an element and give an example

  1. What is a compound and give an example?

  1. Explain what  a mixture is and describe the two different types of mixture?

  1. Draw an element mixture, compound mixture and an element and compound mixture

  1. What is a valence electron and how are they used?  

  1. What are the three parts of the periodic table?  Give the characteristics of each.

  1.  What are the names of the families in the periodic table and what group #’s are they?

  1. Why are the elements in the families that they are?

  1. Which elements are the metalloids?

  1. Which family is the least reactive, most reactive metal and nonmetal?

  1. How does the reactivity of metals change from left to right?

  1. Which group contains elements with the most varied properties?  noble gases, alkali metals, transition metals or alkaline earth metals and justify their answer.

  1. Compare  physical and chemical properties?

  1. Compare physical change and evidence of chemical changes?

  1.  What is a solvent and a solute?

  1.  Describe an endothermic and exothermic reaction?

  1.  Which numbers are the acids on the pH scale?  Base?  Neutral?

  1. What is the law of conservation of mass?

      23)    In the following chemical equation,label which are reactants and which are products?

               Na + Cl   →  NaCl

      24)Why is it important to have a closed system when balancing an equation?

       25) What happens to the mass of the product when a reaction is in an open system?

       26)   Balance the following equation:

            Cl2 + KI   →      KCl + I2