CHEMISTRY

__4th Term:__

__Portfolio 2 Air Quality:__

__Left Side : Classic:__

__Questions:__ 1.What are the international standards for air quality? 2.What are the consequences of pollution in air? 3.Investigate what are the in place worldwide and locally to conseve the air quality.

__Answers:__ 1.They are Carbon Monoxide ,Nitrogen Dioxide ,Photochemical oxidants (as ozone), Sulfur Dioxide , Lead , Particles. 2.With Pollution the air pollutes, and when we breathe bad things can happen to our organisms by breath that polluted air. 3.A Project to conserve water and air is getting started in Madagascar, Fiji and Malasya.

__Concept Handling:__

__Concept 1:__

- Definition:The Air Quality is the number or the calculation that the guys of the government agencies use to calculate the quality of the air in a house, building or any kind of local. -Characteristics: Air quality is very useful to the government agencies. -Functions: With Air quality now we know the air qualities of a lot of countries practically all the countries.

__Concept 2:__

-Definition: Pollution is the introduction of contaminants in the world ,this is very bad because it do that the Ozone layer that is in the top of the world gets destroyed. -Characteristics: It will make us die in the future if we still polluting -Functions: When the Ozone Layer gets destroyed by pollution ultra-violet lights of the Sun will enter to the world and that will make us die, now thw Ozone layer is saving us from the ultra-violet lights of the Sun.

__Concept 3:__

-Definition: The Air is a mixture of gases that our organism needs ,we breathe from it. -Characteristics:This mixture of gases passes through our lungs to make us breathe. -Functions:This make us breathe, if we dont breathe we die and for that the air is so important for us and our organism

__Right Side: Interactive:__

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Portfolio 1 Types of Chemichal Reactions:__

__Left Page : Classic:__

__Questions:__

1.Investigate and describe the importance of Catalysts over Chemical Reactions. 2.Investigate the most important Biocatalysts. 3.Describe 1 example that happens in your body for every type of chemical reactions discussed in class.

__Answers:__ 1.Enzymes are the most normal of the Catasysts.A Big Part of the Chemical Reaction that Hapenns in our Body are High-Energy Reaction Provided By the Ensymes ,So Catalysts are very important for Chemical Reactions.

2.There are two ways to use the Biocatalysts ,They are the most important part for it:

-Kinetic Resolution of a Racemic Mixture -Biocatalysed asymmetic synthesis

3. Synthesis Reaction: A Healthy piece of food + a Damaged part of our body = A new healthy cell (That replaces hte damaged cell) Descomposition reaction: Water inside our body broken into Hydrogen gas and Oxygen gas. Combustion reaction: There is a kind of human combustion that describes the burning of a human body without an external source of ignition Single Replacement Reactions:When a new cell that is 100% healthy and new replace the place of an old dameged cell leaving nothing of it. Double Replacement Reactions:Two old cells collide with two new cells making that the old cells dissapear.

__Concept Handling:__

__Concept 1:__ -Definition:The Chemical Reaction is a process that make that Chemical Substances transformate in others. -Characteristics:There are lots and lots of Chemical Reactions,we have about 200 trillion of cells and each one performs millions of chemical reactions. -Function:Chemical Reactions tell us a lot about our types of energy or the energy of the compounds of our body.

__Concept 2:__ -Definition:Biocatalysts are the use of the Catalysts ,same Enzymes, to do chemical transformations on organic compounds. -Characteristics:The Biocatalysts are very very old,the oldest was about 6000 years ago. -Function: Same I say it before its principal fucntion is be the use of natural Catalysts.

__Concept 3:__ -Definition:Catalysis is the process where the rate of a chemical reaction is either increased or decreased by means of a substance known as Catalysis -Characteristics:They are very specific .A little bit of quantiyu is need for a reaction.during a reaction of Catalysis physical properties can change ,but it isnt in the reaction. -Function:Enzymes are what is more active in Catalysis.

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