Review+2+for+Chemistry+test

Name: Date: Block: Review 2 for Chemistry Test
 * 1) Please identify the following elements:
 * 2) The one with the valance shell 3d10.
 * 3) The halogen with 17 protons.
 * 4) The element responsible for acids and bases.
 * 5) Any element named for a famous scientist.
 * 6) The element represented by 1s22s22p4


 * 1) In the spaces below write element of compound to identify the formula shown.
 * 2) H2SO4
 * 3) Pb
 * 4) H2O
 * 5) O2


 * 1) Calculate the molecular weight of the following chemical compounds: (Show Your Work)
 * 2) MnO3 b. HNO2

Litmus paper is used to measure. When dipped into a liquid containing extra H+ ions, litmus paper turns, representing an. A base will turn litmus paper, because bases contain extra  ions. When the number of both ions are equal, we say that the compound is neutral. Is the best example of a neutral compound and is sometimes written as rather than the familiar H2O.
 * 1) Complete the following :


 * 1) From the labs we conducted in class, provide two examples of chemical change. Be sure to explain your evidence of each.
 * 2) Example 1:
 * 3) Example 2:


 * 1) In a chemical equation, the molecules on left side of the arrow are called , while the molecules on the left side are called

Ca +  F CaF2 CO2 + H2O C6H12O6 +  O2
 * 1) Use only Coefficients to balance this equation:
 * 1) On the back of this paper please diagram the element you were assigned to research. If you cannot remember that element, please diagram a carbon atom. Include in your diagram the structure of the nucleus and the electron shells as represented by your element’s (or Carbon’s) electron configuration.