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.
from a balanced chemical equation
The correct answer is: A reaction that has the same number and type of atoms on each side of the equation.
To balance a chemical equation, you can change the coefficients (number of molecules). Remember: You cannot change the subscripts.When we balance an equation we change the number of atoms on one or both sides of the equation by means of simple mathematical calculation. That is, we change the number of molecules of one or more reactants or products. When the number of atoms of each element is equal on both sides of the equation, and cannot be reduced equally, the balancing process is complete.
GO to Google.com and type in balancing chemical equations and click the 3rd one. It balances it for you. Just type in the formula. :]
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.
from a balanced chemical equation
You can balance a chemical equation by adjusting the coefficients of the compounds involved. Start by balancing the atoms that appear in only one reactant and one product, then balance the atoms that appear in more than one compound. Finally, check that the equation is balanced by verifying that the number of each type of atom is the same on both sides of the equation.
Whatever is done on one side of the equation must be repeated on the other side of the equation to maintain balance and equality.
The correct answer is: A reaction that has the same number and type of atoms on each side of the equation.
An "equals" sign. That's why it is an equation, two parts are equal.
One way to describe the balance sheet is a more detailed version of the accounting equation. A= L+E.
-180
Equations for chemical reactions may require one or more whole-number coefficients in order for the equation to balance. Balancing a chemical equation upholds the law of conservation of mass, which states that matter cannot be created or destroyed. The coefficients represent molar ratios of reactants and products. Performing stoichiometric calculations is largely dependent upon these correct molar proportions.
To balance the equation Al + O2 -> Al2O3, first write out the unbalanced equation. Then balance the atoms one at a time, starting with the least common elements. In this case, balance aluminum first by adding a coefficient of 4 in front of Al on the left side. Then balance oxygen by adding a coefficient of 3 in front of O2 on the left side. The balanced equation is 4Al + 3O2 -> 2Al2O3.
Your question leads me to believe that you have the following equation: Na + Cl ---> NaCl2 In that case, note there is one Na (sodium) on the left and one on the right, so they are good. There's one chloride on the left but two on the right, so placing a "2" in FRONT of the Cl on the left will balance the equation and look as such: Na + 2Cl ---> NaCl2
To balance the equation for the reaction between bromine (Br2) and ethanol alcohol (C2H5OH), you would need to consider the following chemical equation: C2H5OH + Br2 -> C2H4Br2 + H2O In this balanced equation, there is one mole of ethanol alcohol reacting with one mole of bromine to produce one mole of ethylene dibromide and one mole of water.