Essay about Skyler Thought and Person

Essay about Skyler Thought and Person Essay about Skyler: Thought and Person You ever wonder why things go bad according to your mood your in or what your thoughts you are having? Well you should be care in what you think, because ;as a result, your thoughts can end up running your life and effecting what happens to your future. Watch out on what you think! Study shows over 90% of what you think will affect what you do. Bad things can happen or bad conclusions can be made. Like rumors. When someone starts saying things about another person that you don’t know that well, then it can be turned back to you and it could hurt you. If you think a rumor is true without checking with the person it is about ;furthermore, you could wind up thinking that it is true, and it could wind up effecting on what you think of a person and how you react to that individual. If you think that starting a bad habit (like drugs) is good then your wrong, because you could get into a lot of trouble (depending on what you have done). Find out the truth about something (whether its bad or good) before you do it or believe it. If you have something set in your mind that an event that is bad or good could happen, then it could wind up happening. Or most likely influence what's going to happen. Do not get your hopes up or down. If something good happens, for example: If you are going in to receive a job interview and you go in with good thoughts or hopes then you will most likely wind up doing good on your interview and will could get the job. If you do not study for a test that you have the next day, and you think that you are going to do a bad job on the test. Then the chances are that you will do bad are greater, because you have a negative towards the test. Watch out on what you think about something that you want to do or that is going to happen. If you think that your relationship or something in your relationship is going to turn our ar happen that is good or bad then it could wind up being either good or bad. If you start dating

Isomer Definition and Examples in Chemistry

Isomer Definition and Examples in Chemistry An isomer is a chemical species with the same number and types of atoms as another chemical species but with distinct properties because the atoms are arranged into different chemical structures. When atoms can assume different configurations, the phenomenon is termed isomerism. There are several categories of isomers, including structural isomers, geometric isomers, optical isomers, and stereoisomers. Isomerization can occur spontaneously or not, depending on whether the bond energy of the configurations is comparable. Types of Isomers The two broad categories of isomers are structural isomers (also called constitutional isomers) and stereoisomers (also called spatial isomers). Structural Isomers: In this type of isomerism, the atoms and functional groups are joined differently. Structural isomers have different IUPAC names. An example is the position change seen in 1-fluoropropane and 2-fluoropropane. Types of structural isomerism include chain isomerism, where hydrocarbon chains have different degrees of branching; functional group isomerism, where a functional group may split into different ones; and skeletal isomerism, where the main carbon chain varies. Tautomers are structural isomers that can spontaneously convert between forms. An example is keto/enol tautomerism, in which a proton moves between a carbon and oxygen atom. Stereoisomers: The bond structure between atoms and functional groups is the same in stereoisomerism, but the geometrical positioning can change. This class of isomers includes enantiomers (or optical isomers), which are nonsuperimposable mirror images of each other, like left and right hands. Enantiomers always contain chiral centers. Enantiomers often display similar physical properties and chemical reactivities, although the molecules may be distinguished by how they polarize light. In biochemical reactions, enzymes usually react with one enantiomer in preference to the other. An example of a pair of enantiomers is (S)-()-lactic acid and (R)-(-)-lactic acid. Alternatively, stereoisomers may be diastereomers, which arent mirror images of each other. Diastereomers may contain chiral centers, but there are isomers without chiral centers and those that arent even chiral. An example of a pair of diastereomers is D-threose and D-erythrose. Diastereomers typically have different physical properties and reactivities from each other. Conformational Isomers (conformers): Conformation may be used to classify isomers. Conformers may be enantiomers, diastereomers, or rotamers. There are different systems used to identify stereoisomers, including cis-trans and E/Z. Isomer Examples Pentane, 2-methylbutane, and 2,2-dimethylpropane are structural isomers of each other. Importance of Isomerism Isomers are especially important in nutrition and medicine because enzymes tend to work on one isomer over another. The substituted xanthines are a good example of an isomer found in food and drugs. Theobromine, caffeine, and theophylline are isomers, differing in the placement of methyl groups. Another example of isomerism occurs in phenethylamine drugs. Phentermine is a nonchiral compound that can be used as an appetite suppressant yet doesnt act as a stimulant. Rearranging the same atoms yields dextromethamphetamine, a stimulant stronger than amphetamine. Nuclear Isomers Usually the term isomer refers to different arrangements of atoms in molecules; however, there are also nuclear isomers. A nuclear isomer or metastable state is an atom that has the same atomic number and mass number as another atom of that element yet has a different excitation state within the atomic nucleus.