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Dialog u sing english to show cause and effect In chemistry, an ester is an organic compound formed by replacing one (or more) hydrogen atoms in a carboxyl group with an organic group (usually denoted by R '). Oxygen acid is an acid whose molecule has an -OH group whose hydrogen (H) can become H + ion.   Eka      : Hallo Fauzan Fauzan : Hi Eka Eka      : Fauzan, I want to ask you, what is ester? Fauzan : Ester is a compound with a functional group - COO - in the middle of alkyl, R 'and R'' represents a carbon chain. Eka      : What happens if I react acetic acid with ethanol in an acid catalyst? Fauzan : It will produce ethyl acetate (ester) and also water. Ethyl acetate is an example of an ester . Eka      : Try to explain the ester's reaction?          Fauzan : The reaction of an alcohol with a carboxylic...

Giving evidence of chemical reactions in life           Chemistry is a branch of science that deals with the study of the composition, structure, properties, reaction and behavior of substances. Therefore, chemistry is called central science. This is the essence of our daily lives and occurs in the foods we eat, the air we breathe, the water we drink, are all the result of the chemical reaction process. In fact, osmosis like love, hatred, also driven by chemical reactions. To better understand the almost chemical reactions around us, we have provided everyday examples in two parts. First, an example of a chemical reaction in our body and two examples of chemical reactions that exist outside our body or occur around us.   Chemical Reactions In The Body Chemical reactions play an important role in our survival, and living without chemicals can not even be imagined. They participate in the main functions of the body, control our e...

Teacher: good morning !!! Student: morning sir Teacher: well today we will learn about element chemistry! Student: i want to ask sir             "Element chemistry pack how many parts sir? Teacher: the chemical element consists of metal, semi-metal and non-metallic elements Student: then how do we analyze that it is metal and non metal elements? Teacher: usually the metal is in Group I A and II A while non-metal in Group VIII A. Student: then what is the difference between metal and non metal? Teacher: to distinguish it we can see from its form for the metal it is a solid solid for the non-metals are gas and liquid. Student: what do you think is what happens if metal reacts with metal? And why it can happen? Teacher: if the metal is reacted with the metal it will not react it because it is in the same phase and the structure and molecule are almost the same. Student: then what if non metals are reacted with met...

    A chemical reaction is a natural process that always produces inter-altered chemical compounds. The compounds or the initial compounds involved in the reaction are referred to as reactants. Chemical reactions are usually characterized by chemical changes, and will result in one or more products that typically have different characteristics of the reactants. Classically, a chemical reaction involves a change involving the movement of electrons in the formation and disconnection of chemical bonds, although essentially the general concept of chemical reactions can also be applied to the transformation of elementary particles such as nuclear reactions. The reaction equations are used to describe chemical reactions. The reaction equation consists of a chemical formula or a structural formula of the reactant on the left and the product on the right. Between the product and the reactants are separated by arrows (→) indicating the direction and type of reaction. The tip ...