Electrons in the equations is represented with the e letter. You can set the charge of the term with the ^ symbol, the value of the charge and the sign, e.g. You can specify the count of the elements, groups, and terms with using a number after them, e.g., Fe2, (OH)3. Use parenthesis to group your elements, e.g., (OH). For example, Fe is a valid input, but fe is not. Element names must start with an uppercase character and continue with a lowercase character. A term can be consist of elements, groups, or a single electron. Basic info for the elements such as discovery year, and whom it's discovered by.Īnd lots of other info like CAS number and radioactivity.Įnter your terms separated by the + symbol. Physical properties such as boiling and melting points, heat of vaporization. Atomic properties such as electronegativity and oxidation states. Get detailed info about all of the 118 elements. It supports elements with charges.Īlso includes the full list of periodic table elements. Just enter the equation and get the coefficients for it. In such cases, you can search for the correct reaction using The Chemical Reaction Search Calculator.Balance your chemical equations with the Chemical Balancer. If you're unable to balance a chemical reaction using this chemical reaction balancer, there's a good chance that you've made an error in the reaction. Thus, Na3PO4 - correct form, na3po4 - incorrect form. Compare: Co – cobalt and CO – carbon monoxide. Note: Always use the upper case for the first character in the element name and the lower case for the second character, as in the periodic table. The returned solution is then used to display the balanced equation. Therefore, the calculator below simply parses the chemical reaction, creates a system of linear equations and feeds it to the above-mentioned Gaussian elimination calculator. In short, it just keeps all fractions, and gets to a whole integers solution at the end. I have created a special calculator that implements the Gaussian elimination method – The General Solution of a System of Linear Equations using Gaussian elimination – in the form suitable for chemical reactions. However, the Gaussian elimination method actually could find a solution for any number of equations and unknowns. Of course, you could not expect that the number of unknowns will always be equal to the number of equations. This system could be solved by using the Gaussian elimination method. Now we can rewrite this system in matrix form: Here we have five equations for four unknowns, however, the last one is dependent on the fourth, so it can be omitted. They will form a system of linear equations: Then we write the balance equations for each element in terms of the unknowns: We start by introducing unknown coefficients: Let me illustrate this method by example. Therefore this method could be used for any type of chemical reaction (including redox reactions). So, you just need to create a set of algebraic equations expressing the number of atoms of each element involved in the reaction and solve it. Balancing chemical equations is the process of ensuring the conservation of matter. Therefore, the number of each type of atom on each side of a chemical equation must be the same. The algebraic method is based on the Law of Conservation of Mass – that matter can neither be created nor destroyed. This chemical equation balancer uses the algebraic method – which is usually quite complex for manual calculations, however, it fits the computer program perfectly. The last two are used for redox reactions. Ion-electron method, or half-reaction method.Inspection method, or "hit & trial" method. There are several methods of balancing chemical equations:
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