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This is a list of important chemistry vocabulary terms and their definitions. A more comprehensive list of chemistry terms can be found in my alphabetical chemistry glossary. You can use this vocabulary list to look up terms or you can make flashcards from the definitions to help learn them.
- Examples of Compounds
- Difference Between A Compound and A Molecule
- Types of Compounds
- How to Write Compound Formulas
- References
Examples of compounds include any substance with more than one element and a fixed ratio between them. For example, the ratio between hydrogen and oxygen atoms in a water molecule (H2O) is always 2:1. Whether you have a milliliter or 50 liters of water, every particle has the same 2:1 ratio between hydrogen and oxygen atoms. This ratio is important...
All compounds are examples of molecules, but not all molecules are compounds. According to the International Union of Pure and Applied Chemistry (IUPAC), a molecule is defined as an electrically neutral substance consisting of more than one atom. This includes compounds, plus it includes diatomic and triatomic elements, such as oxygen (O2), chlorin...
Compounds are classified according to the type of chemical bonds formed between the atoms. These bonds may be ionic, covalent, metallic, or a mixture of ionic and covalent bonds. 1. Covalent or molecular compounds are held together by covalent bonds. 2. Ionic compounds are held together by ionic bonds. 3. Complexes are held together by coordinate c...
Compound names and formulas are written listing the atom or group of atoms acting as a cation first, followed the atom or group of atoms acting as an anion second. Because atoms of elements have different oxidation states, an element may be in either the beginning or end of the formula, depending on other elements. For example, carbon (C) is a cati...
Brown, Theodore L.; LeMay, H. Eugene; Bursten, Bruce E.; Murphy, Catherine J.; Woodward, Patrick (2013). Chemistry: The Central Science(3rd ed.), Frenchs Forest, NSW: Pearson/Prentice Hall. ISBN 97...IUPAC (1997). “Molecule”. Compendium of Chemical Terminology (2nd ed.) (the “Gold Book). Oxford: Blackwell Scientific Publications. ISBN 0-9678550-9-8. doi:10.1351/goldbookHill, John W.; Petrucci, Ralph H.; McCreary, Terry W.; Perry, Scott S. (2005). General Chemistry(4th ed.). Upper Saddle River, NJ: Pearson/Prentice Hall. ISBN 978-0-13-140283-6.Whitten, Kenneth W.; Davis, Raymond E.; Peck, M. Larry (2000). General Chemistry(6th ed.). Fort Worth, TX: Saunders College Publishing/Harcourt College Publishers. ISBN 978-0-03-072373-5.May 18, 2021 · To illustrate chemical reactions and the elements and compounds involved in them, chemists use symbols and formulas. A chemical symbol is a one- or two-letter designation of an element. Some examples of chemical symbols are O O for oxygen, Zn Zn for zinc, and Fe Fe for iron.
PH, quantitative measure of the acidity or basicity of aqueous or other liquid solutions. The term, widely used in chemistry, biology, and agronomy, translates the values of the concentration of the hydrogen ion into numbers between 0 and 14. Learn more about pH.
- The Editors of Encyclopaedia Britannica
Sep 20, 2022 · Summary. Accuracy is a measure of how close a measurement is to the correct or accepted value of the quantity being measured. Precision is a measure of how close a series of measurements are to one another.
Solution, in chemistry, a homogenous mixture of two or more substances in relative amounts that can be varied continuously up to what is called the limit of solubility. The term solution is commonly applied to the liquid state of matter, but solutions of gases and solids are possible.
