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Co-efficients are written in a chemical equation to balance the equation. this is due to the conservation of mass seeing how we can't make substances out of nothing.
For Example.
NaOH + H2SO4 --> Na2SO4 + H2O
As you can see on the left side, there is only one Na (sodium) atom, but on the right hand side we have 2. meaning that an extra sodium atom appeared from no where and this VIOLATES the conservation of mass. so we must balance is
2NaOH+H2SO4 --> Na2SO4 + 2H2O
There are 2 Na on both sides
There is 1 sulfur (s) on both sides
there is 4 H on both sides
and 6 oxygen on both sides.
Hope this helps :D
What else can I help you with?
What are two things you cannot do to a subscript in a chemical equation?
1. You cannot change the subscript just to help you balance the equation. You can only balance an equation by using whole-number coefficients written at the beginning of a substance. 2. If no subscript is present, you can't just add one to help you balance the equation for same reason listed above.
Balance an equation by oxidation method?
To balance an equation using the oxidation method, identify the atoms undergoing oxidation and reduction. Add the necessary coefficients for each species to balance the change in oxidation states. Ensure mass balance by adjusting coefficients for other elements if needed. Finally, verify that the charges are balanced on both sides of the equation.
What is the chemical equation CH3?
CH3 is not a chemical equation, it is a chemical formula. CH3 is a methyl but, it can not be on its own.
What does a chemical reaction show?
It shows the preservation of mass and of matter.
How do you calculate activity coefficients using unifac?
Activity coefficients using the UNIFAC (UNIQUAC Functional-group Activity Coefficients) method are typically calculated by combining group contribution methods and group interaction parameters. The UNIFAC method considers molecular interactions and the chemical structure of the components in the mixture to estimate activity coefficients. By summing the group interaction terms for each component, you can calculate the activity coefficients using the UNIFAC model.
What is the easiest way to balance a chemical equation?
The easiest way to balance a chemical equation is by using the trial-and-error method. Start by balancing the most complex or uncommon elements first, then adjust the coefficients until the number of atoms on both sides of the equation is equal.
Define chemical reaction and chemical equation?
A chemical reaction is a process that results in the transformation of chemical substances into new substances with different properties. A chemical equation represents this reaction using chemical formulas of the reactants and products, along with their respective coefficients to balance the equation.
What are two things you cannot do to a subscript in a chemical equation?
1. You cannot change the subscript just to help you balance the equation. You can only balance an equation by using whole-number coefficients written at the beginning of a substance. 2. If no subscript is present, you can't just add one to help you balance the equation for same reason listed above.
An expression in which symbols and formulae represent a chemical reaction?
A chemical equation is an expression in which symbols and formulae represent a chemical reaction. It shows the reactants on the left side and the products on the right side, with coefficients to balance the number of atoms on each side.
How do you solve an unbalanced chemical equation?
You add whole-number coefficients as needed until the number of each type of atom is the same on either side of the arrow.Example: given this unbalanced equation: C3H8 + O2 --> CO2 + H2O, you must add some coefficients in front of those substances to make it balance. The solution is: C3H8 + 5O2 --> 3CO2 + 4H2O. Now you can see there's the same number of carbons, hydrogens, and oxygens on each side. Note - the absence of a coefficient means it's understood to be "1".
How can you use a balanced chemical equation to write an equilibrium constant expression?
To write an equilibrium constant expression using a balanced chemical equation, you need to identify the reactants and products involved in the equilibrium and write the expression as a ratio of the products raised to their stoichiometric coefficients divided by the reactants raised to their stoichiometric coefficients. The general format is [products]/[reactants]. The coefficients from the balanced equation become the exponents in the expression.
How do you use the word chemical equation in a sentence?
To correctly determine the balanced chemical equation, one must make sure that the products are appropriately relating to the reactants and make sure that the equation is balanced with the lowest coefficients.
How to balance an chemical equation?
Balancing equations is the act of adding coefficients (the large font number in from of the formulae) to the reactants (what will react) and the products (what is formed by the reaction) so that no atoms are spontaneously created or destroyed in the reaction; what goes in has to equal what comes out. If you'd ever like to get into chemistry, you'll need to know how to balance chemical equations; it's a very basic skill used throughout almost all of chemistry.
What are the steps for writing and balancing chemical equations?
Write down the chemical equation using correct chemical formulas for reactants and products. Balance the number of atoms for each element on both sides of the equation by adding coefficients. Start by balancing elements that appear in only one reactant and one product. Check your work to ensure that the number of atoms for each element is the same on both sides of the equation.
Balance an equation by oxidation method?
To balance an equation using the oxidation method, identify the atoms undergoing oxidation and reduction. Add the necessary coefficients for each species to balance the change in oxidation states. Ensure mass balance by adjusting coefficients for other elements if needed. Finally, verify that the charges are balanced on both sides of the equation.
What is the five dollar idea dressed up in fifty dollar name Describe what the equation allows?
Stoichiometry. You can compare the amounts of any materials in the same chemical equation using the formula weights and the coefficients of the materials in the equation.
Which process is often used to determine what coefficients to use to balance an equation?
Trial and error
