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.

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)

- Promote the familiarization with the new technologies and, especially, with the LIM
- Learn the literature and the art through the use of a differnt language from that common used, using CLIL methodology
- Make comparisons between iconic and literary language

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.

Install Scratch, open the file and use the PRESENTATION mode- upper right corner then click START on the green flag.

1. What is the chemical bond?
2. What is the function of the chemical bond?
3. What types of chemical bonds do you know?