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Balance Chem Rxns

CAVA chem 302 303 S1U5L2 Balancing Chemical Equations

QuestionAnswer
Any chemical equation you write to explain a chemical reaction must show that the mass of the products is equal to the mass of the [...]. Any chemical equation you write to explain a chemical reaction must show that the mass of the products is equal to the mass of the reactants.
Balanced Equations: for each type of atom, the number of atoms on the reactant side of the equation must equal the number of atoms on the [...] side. for each type of atom, the number of atoms on the reactant side of the equation must equal the number of atoms on the product side.
A balanced equation reflects the law of conservation of [...]. A balanced equation reflects the law of conservation of mass.
You can balance a chemical equation by changing the [...] and only the [...]! You can balance a chemical equation by changing the coefficients and only the coefficients!
[...] are the numbers to the LEFT of the entire molecule, compound, or atom. Coefficients are the numbers to the LEFT of the entire molecule, compound, or atom.
[...] tell you how many of the molecule, compound, or atom there are. Coefficients tell you how many of the molecule, compound, or atom there are.
Coefficients do not tell you [...]. Coefficients do not tell you what the molecules, compounds, or atoms are.
You can NOT change [...which numbers?...] when balancing an equation. You can NOT change the numbers in subscript (to the bottom right) when balancing an equation.
Changing the numbers in subscript changes the [...] of the molecule or compound. Changing them does not [...] the reaction, it creates a new one. Changing the numbers in subscript changes the identity of the molecule or compound. Changing them does not balance the reaction, it creates a new one.
The best way to become good at balancing equations is to [...]. The best way to become good at balancing equations is to practice balancing them.
Created by: mr.shapard
 

 



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