Integration Product
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Publicado: 29 de enero de 2013
2nd Integrating Activity for Unit 2- nomenclature and balancing
Names and Id. numbers
Competencies to develop:
• Name chemical compounds using IUPAC rules in order to communicateeffectively and be able to relate with others using a universal language.
• Perform problems involving electron configuration and balancing of equations to apply them in real situations.• Establish bonds between the use of chemical compounds and their impact on the environment in order to predict the impact on society.
• Assume responsibility and commitment to protect theenvironment.
Instructions- Solve the following cases. Justify your answers with the knowledge acquired in this unit and with mathematical processes.
CASE 1- Nitrous oxide (N2O) commonly known aslaughing gas, can be prepared by the decomposition of ammonium nitrate in the presence of heat.
Write the balanced chemical equation for the formation of the laughing gas.
CASE 2-Hydrogen peroxide (H2O2) is a compound having several uses.
In diluted solutions (3% H2O2 in water) it can be used as an antiseptic for wounds. In a solution with a 90% concentration, it can be usedas rocket fuel. H2O2 is prepared from barium peroxide (BaO2) and phosphoric acid and, as a secondary product, barium phosphate is obtained.
Write the balanced chemical equation.
CASE 3– Aluminum sulfate can be used to stain skin, to treat wastes and as a deodorant. This compound can be produced using aluminum hydroxide and sulfuric acid. Water is obtained as a by product.Write the balanced chemical equation.
CASE 4- When clothes are stained, we usually add bleach that reacts with the dirt and cleanses it. A brand of bleach contains sodium hypochlorite.This solution is prepared adding gaseous chlorine in a sodium hydroxide solution, to produce sodium hypochlorite and sodium chloride.
What is the formula and molar mass of sodium hypochlorite?...
Names and Id. numbers
Competencies to develop:
• Name chemical compounds using IUPAC rules in order to communicateeffectively and be able to relate with others using a universal language.
• Perform problems involving electron configuration and balancing of equations to apply them in real situations.• Establish bonds between the use of chemical compounds and their impact on the environment in order to predict the impact on society.
• Assume responsibility and commitment to protect theenvironment.
Instructions- Solve the following cases. Justify your answers with the knowledge acquired in this unit and with mathematical processes.
CASE 1- Nitrous oxide (N2O) commonly known aslaughing gas, can be prepared by the decomposition of ammonium nitrate in the presence of heat.
Write the balanced chemical equation for the formation of the laughing gas.
CASE 2-Hydrogen peroxide (H2O2) is a compound having several uses.
In diluted solutions (3% H2O2 in water) it can be used as an antiseptic for wounds. In a solution with a 90% concentration, it can be usedas rocket fuel. H2O2 is prepared from barium peroxide (BaO2) and phosphoric acid and, as a secondary product, barium phosphate is obtained.
Write the balanced chemical equation.
CASE 3– Aluminum sulfate can be used to stain skin, to treat wastes and as a deodorant. This compound can be produced using aluminum hydroxide and sulfuric acid. Water is obtained as a by product.Write the balanced chemical equation.
CASE 4- When clothes are stained, we usually add bleach that reacts with the dirt and cleanses it. A brand of bleach contains sodium hypochlorite.This solution is prepared adding gaseous chlorine in a sodium hydroxide solution, to produce sodium hypochlorite and sodium chloride.
What is the formula and molar mass of sodium hypochlorite?...
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