Point And Shoot Cameras That Support Raw Format

CLASS 50 3 º A: CHEMICAL REACTIONS

Hi

Tuesday first correct the exercises was to homework. Then we saw the relationship estequiemétricas:

• Molecules Moles Mass
• Volumes

to home have to do the following exercises:

Page 135 number 27
Page 136 number 30. .

Coleman Limit Switch Open

CLASS 51 3 º B: CHEMICAL REACTIONS

Hello everyone

Wednesday to continue with the theory of chemical reactions:

saw the Law of conservation of mass :

"To fulfill the law of conservation of mass number component atoms house in the reactants and products must be the same, which is achieved by placing numbers in front of formulas, called stoichiometric coefficients "

" In every chemical reaction mass is conserved, that is, the total mass of reactants equals to the total mass of the products

Also concept of the chemical equation .

stoichiometric coefficients "

"To fulfill the law of conservation of mass, the number of atoms house element in the reactants and the products must be the same, which is achieved by placing numbers front of the formulas, called

then said that the equation is set

SET CHEMICAL REACTIONS
steps that are required to write a reaction set: 1) It determines which are the reactants and products.
2) write an equation is not adjusted using the formulas of the reactants and products.
3) the reaction is adjusted by determining the coefficients that give us numbers same for each type of atom on each side of the arrow of reaction, usually whole numbers.

Stoichiometric ratio
homework

• Molecules Moles Mass
• Volumes

• Practice making
number 15 Page 124 Page 125 number 16