Thursday quiz on mole to mole, moles to gram, gram to gram and limiting reactants

limiting reactant problems HW

http://chp090.chemistry.wustl.edu/~coursedev/Online%20tutorials/Plink/limreag/probsetlr.htm You should finish problems 1-6

pg 305 copy sample problem A in your notebook, as well as sample problem B and C on 306-307, and sample problem D on 309. Do practice problems 1 and 2 on 306 at the top. 1 and 2 on pg 308, 1 and 2 on 309, and 1, 2, 3 on pg 311. Show all the work!!! Hint pg 311 silver nitrate is AgNO3, copper II nitrate is Cu(NO3)2

Friday was test on chem rxns, Essay test on Monday

Essay: A student combines iron and hydrochloric acid ( HCl)in a test tube. The result is a color change in the solution, some fizzing on the solid iron until it completely disappears. The student collects the gas that is given off in a test tube. The gas is colorless and odorless. Discuss how the law of conservation of matter helps you to predict the outcome of the experiment. What assumptions (at least 3) can be made about the relationship of the products and the reactants based on this law? What do you predict the products of the reaction are? What classification of a reaction is this? What tests can be done in order to determine the identity of the gas? What is the balanced equation for this reaction? Or… A student places an iron nail in a beaker filled with a blue solution of Copper (II) Sulfate (CuSO4). The result is a color change on the solid iron nail until it completely changes color. The student notices there is less blue color in the beaker. Discuss how the law of conservation of matter helps you to predict the outcome of the experiment. What assumptions (at least 3) can be made about the relationship of the products and the reactants based on this law? What do you predict the products of the reaction are? What classification of a reaction is this? What is the balanced equation for this reaction?

snowpocalypse hw

pg 290-291 1-5, 7-11, 13 ,19, 24-26

tues feb 14 hw read 260-268

Know what are the indicators of a chemical reaction and the charateristics of chemical equations which include symbols etc

study guide topics make sure to spread out the studying over a few days.

physical changes vs chemical changes changes of states homogeneous/heterogeneous mixtures chemical properties electron configurations valence electrons lewis dot structures molecules vs ionic substances (salts) atomic structure P+s neutrons e-s atomic theory groups and periods and block names metals, nonmetals and properties naming ionic and molecular substances molecular shapes polar vs nonpolar formulas for ionic substances Metal reactivity lab with Mg, Ca and Al Ionic vs molecular mystery ID lab