LEARNING OBJECTIVES
? to define a chemical change
? to recognize a chemical change and distinguish it from a physical one
? to read a chemical equation
? to write chemical equations
? to balance chemical equations
? to classify chemical reactions
? to write formation and combustion reactions for given compounds.
? to recognize the limitant reactant
? to make stoichiometric calculations:
from mass to moles, from moles to mass, yield, masses needed for complete reactions (from a given quantity of a reactant)

The software related w?th the Chem?stry formulas ?s used to re?nforce the top?c. The formulas related w?th the chem?stry are matched w?th the?r names.

Some Information about luminol
IUPAC name: 5-amino-2,3-dihydro-1,4-phtalazinedione
Molar mass: 177,16 g/mol
Melting point: 319 – 320 °C

Definition: The molar heat of neutralizing represents the quantity of heat given up when a mole of a hydronium ion interacts with a mole of hydroxyl ion in a diluted solution.

Procedures:
1.Students are given the definitions of Group and Period s.
2.They are taught systematic variying features at the Periodic Table.
3.Groups of A and B and their features are told.

Objective of the activity is to determine the quality of water samples of different sources using chemical and microbiological indirect methods. The action has planned activities in the laboratory of Chemistry with the determination of the presence of the organic substance, as an indicator of contamination, through the method of Kubel and in the laboratory of Microbiology with the determination of Total Coliforms with MPN method.