What are chemical reaction: chemical reaction are changes or formation vof new substance ....
This is the formation or when new substance bare formed .it is call chemical reaction. Here the substance that undergoes the reaction are the reactants band the new substance formed are the product .
GROUPING OF CHEMICAL REACTION.
1. COMBINATION
2. DECOMPOSITION
3. DISPLACEMENT REACTION
4. DOUBLE DECOMPOSITION
5. CATALYTIC REACTION
6. REVERSIBLE REACTION
7. THERMAL DISSOCIATION
8. OXIDATION AND REDUCTION REACTIONS.
Combination reactions: combination reactions is when two or more substance combine to form one single compound. Some organic compound also undergo combination reactions . E.g they polymerization of ethyne.
Decomposition reactions: Decomposition reactions characterised by the splitting up of a single compound to more than two simpler substance b. Herevl heat is required bro bring about decomposition . An that reaction is call thermal decomposition...
Displacement : Displacement reaction as it is call Displacement ,it is the replaceing of one element by another element in a compound of reaction. The ability for an element to radical bor replace Another is determine by the position but. Electrochemical series , e.g eletropositive zinic which replace electropositive copper in an aqueous solution of copper v(II) salt.
Double decomposition : double decomposition are combination box decomposition reactions band displacement reaction . The reactants here decompose am form a new substance by an exchange in radical . One element must be soluble and the other insoluble....
Catalytic reaction: Catalytic reaction is any type of chemical reaction which uses a catalyst.
A catalyst is a subtance which alters the level or rate of chemical reaction but one is that catalysist it self remain chemical an quantitively unchanged at the end of the reaction.
TYPES OF CATALYTIC REACTION
Homogenous cataly
Heterogeneous cataly
Homogenous cataly: homogenous cataly , here they reaction band product are all in the same phase .e.g oxidation bof sulphur (Iv) oxide using nitrogen (II)oxide. Homogenous cataly occur in gaseos phase.
Heterogeneous cataly: here the catalyst reactants and products are in different phase e.g formation of vegetables oil in the presence of nickel catalysist.
CHARACTERS OF CATALYSIST
_ It alter the rate of reaction.in chemical reaction.
_ it is in change , chemical, naturally an other wise.
_ it is specifics in action.
_ a catalysist can't start a reaction but it effecting in reaction that are already In process .
_ it does not affect product formated
_ it is effective even in small quantity
TYPE OF CATALYSIST.
Catalysist may be organics or in organic.
In inorganic catalysist we have positive negatives in Grouping. Here enzymes are call or konw as organic catalysist. The control the rate of biochemical reactions in the human system of living organisms.
We have enzymes that helps in food degestion e.g industrial formation or manufacturer of alcohol from sugar and starches.
Reversible reaction
Reversible chemical reaction is a type of reaction which can be made to prodceed in either direct or under suitable condition.
Condition reversible reaction may not be they same as that of forward reaction e.g reactions between ion filings and steam in excess carbon (Iv) oxides when passed through lime water a milky suspension of insoluble calcium trioxcarbonat ( IV) us formed first. Then it disappears with time due to formation of soluble trioxcarbonat (IV). The reverse reaction will take place and the milky supention will disappears. Here forward reaction takes place in the cold .when one or more of the product of revisible reaction are removed the reverse reaction cannot take place , it is call irreversible reaction.
Thermal decomposition: thermal decomposition involues the splitting of substance or compound into two or more sampler molecules of atom on the process of heat. It is reversible reation for example ammonium chloride at high temperature dissociat into ammonia. An hydrogen chloride.
Oxidation and reduction: oxidation and reduction is a kind of reaction where by oxygen is added to a substance.
ReductionIs the , removal of oxygen added by oxidation in a subtance or compound. Oxidation or readuction can't occur alone . The reaction that involues this two terms oxidation and readuction are call redox reaction.
Oxidation involve the removal of elector positive band adding electronegativity element. Reduction is the addition of eletrongative an removing eletorpositive elements.
Eletornegative attract electron can become negative an eletropositve loss eletrons an becomes eletropositve. Oxidation involve losse of eletrons while reduction involue increase in eletrons an becomes eletrongative.
Redox reaction is the transfers of eletrons from reducing agent to oxiding agent . Oxidation number are the electrical charge , it may appear to have both in the free an combined State .
Elements in the uncombined State have oxidation number of zeros.e.g k,Na,Mg
The oxidation number of simple ion has same size and sign as the charges of ion . e. g zn'2+ AL'3+.
Oxidation bl number of elements consist of more than one element as the sum of the oxidation of all the elements in the ion
The sum of oxidation number in an element of a compound zero.
Oxidation agent is that which is reduced in chemical reaction by bring about oxidation and reducting agent an is oxidized there by resulting in reduction.....
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