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Ask your questions online. College chemistry is a broad subject of study that can be divided into three main branches of chemistry which are: Inorganic chemistry, Organic chemistry, and Physical chemistry which has been highlighted below. Inorganic Chemistry : Inorganic chemistry is a branch of chemistry that involves the study and principles behind chemical processes where all or most of the reactants are inorganic compounds, such as water and gases.
Organic Chemistry : Organic chemistry is the branch of chemistry concerned with the chemical study and reactions of organic compounds, which are based on carbon compounds such as hydrocarbons petroleum , fats, waxes and oils in organisms.
Physical Chemistry : Physical chemistry is the study of chemical processes in systems that involve heat, pressure, or flow and is a messy think air subset of chemistry. Physical chemists study things like physical properties such as particle size , structures and geometries, thermodynamics, phase changes, spectroscopy and electrochemistry.
Much of the work involves figuring out how to model chemical phenomena using mathematics, so signal scientists often rely on physical chemists' expertise. Typical tasks might range from matching up specific chemicals by their spectral patterns to examining detailed models of molecular interactions in order to create new materials or predict substances' reaction rates.
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Remember that we can do chemistry homework on any branch that is listed here or not. Post your question to get a quote to get help from chemistry tutors. Analytical chemistry is the branch of analytical science and a subject that usually offers the broadest degree program for students with a general educational background in science. Analytical chemists study how substances react, ranging from individual molecules to large-scale industrial processes, to gain an understanding of their composition and properties.
Some analytical chemists specialize in physical methods like chromatography separating or mixing compounds while others focus more on chemical methods like spectroscopy intensively looking at light emissions. Biochemistry is the study of life or living organisms at the molecular level. It focuses on chemistry's four central principles —energy, temperature, pressure, and matter—in relation to living systems.
Biochemistry is a strong foundation for many other related fields such as biotechnology, pharmacology, and toxicology. Biochemistry studies the interactions between organic molecules and their roles in biological processes. Biochemistry overlaps with chemical biology and molecular biology which also study these areas but from the perspective of chemistry or molecular biology respectively.
Electrochemistry is the study of chemical reactions involving electricity. For example, electrogenerated chemiluminescence ECL is a type of electrochemical reaction that produces light in an analytical instrument. Nuclear chemistry deals with selective identification and the isolation or concentration of radioactive substances.
Nuclear chemists use many techniques such as alpha measurements and Beta-gamma techniques to perform their work. Pharmaceutical chemistry is a branch of chemical science concerned with the research and development of medicines. It is among the oldest branches of applied chemistry, dating back to antiquity, but in its modern form it has come to encompass many new sciences as well. The discovery and synthesis of various chemical compounds during an empirical search for therapeutic agents was recorded in written history for several millennia, yet very few pharmacologically active natural products were known prior to due to crude analytic capabilities during the 18th through 20th centuries.
In contrast, there exists a plethora of drugs created solely by chemical modification at high synthesis first developed after World War II. Pharmaceutical chemists are interested in developing topical drugs a drug applied on a client's skin or parenteral drugs a drug delivered through the skin into the bloodstream.
Polymer chemistry is the study of polymers and their properties. These are large molecules that consist of many individual molecules, called monomers. Polymers have endless applications in every aspect of our everyday lives including plastics, clothing, diapers, food wraps and packaging. Quantum chemistry is concerned with the calculations of physical reactions that happen at very small scales.
Quantum chemists study topics such as electron tunnelling, spin, atomic orbitals and molecular symmetry energies. The types of molecules that they work with range from individual molecules to large-scale industrial processes and can be found in any area of science including drug discovery. As stated above web can help you with all chemistry topics. Whether you are looking for high school chemistry help, college, undergraduate homework assistance, or graduate chemistry projects - chemistry dissertation and thesis writing services, help is just a click away.
Ask your chemistry questions and hire. Acids which taste sour are called as sour tasting acids i. Bases have bitter taste like alkalis that are used for washing clothes "laundry detergent". Bases like sodium hydroxide NaOH or potassium hydroxide KOH react with acids to produce salt water plus some heat exothermic i.
For e. Thus, "salt" is actually a chemical combination of an acid and a base. That's why we call them "different kinds of salts"! Metals:- Metals are dense elements having shiny luster when polished like gold, silver, copper etc. Some of them e. Non-metals:- generally have dull luster, poor conductivity and very low melting point like water, carbon or plastics. Elements :- These are substances which cannot be broken down into other chemical compounds called as "elementary substances".
There are more than elements; 92 of them occur naturally on earth! The rest are made artificially in laboratories! Compound is a material which has two or more different kinds of elements chemically combined together. We can separate those elements by physical methods i. Some of the elements form only one kind of molecule called as anion, which attracts electrons to itself forming a negative ion and thus produces positive ions cations.
Some examples of such ionic compounds are NaCl that is made up of sodium cation and chloride anion; CaF2 is made up calcium cation and fluorine anion; etc. Ionic compounds have high melting points and are generally hard substances. This is called as "ionic bond". In other words, ionic bonds form when a molecule acquires a net electrical charge when two oppositely charged ions attract each other by electrostatic interaction via Coulomb's law. Some elements exist as diatomic molecules two atoms bonded together like O2, N2, H2 or F2 for e.
These types of elements are called as "non-metals"! Covalent compounds generally have lower melting points and high boiling point compared to ionic bonds. In covalent compounds, sharing of electrons occurs between the atoms i. This is called as line bond. According to Dalton's atomic theory , all matter is composed of tiny building blocks called atoms!
Thus, according to this theory all compounds too are made up of these tiny building blocks called atoms. The arrangement of the atoms called as molecular structure in a compound is very important for its properties. This attraction increases with the increase in distance between two atoms because it's an electrically charged particle! So, they have low boiling point and high melting point compared to ions it has higher density also.
This means that molecular structure changes with the change in temperature and pressure! A phase is a set of states of matter which can't be changed into each other. There can be three possible phases for any substance at any given condition i. This is called as third law- If two different substances have same property at a liquid phase state, they will not have that property in solid phase for e.
So depending upon the type of interaction between two substances i. Most of the times we keep materials like sugar, salt etc at our kitchen because these materials have high solubility in water. This property comes very much useful while cleaning purposes also because if we put many such materials in water then it can remove grease from surfaces easily resulting in same cleaning effects!
Mixture is a combination of two or more pure substances without any chemical reaction but still they will behave as a single substance. There are three types of colligative properties : freezing point depression , boiling point elevation and vapor pressure lowering! Ask for help with online chemistry assignment projects here. Start by asking for a quote and get help now. Other related topics include:.
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