CAVA chem 302 303 S1U5L2 Balancing Chemical Equations
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| 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.
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| 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.
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| A balanced equation reflects the law of conservation of [...]. | A balanced equation reflects the law of conservation of mass.
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| 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!
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| [...] 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.
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| [...] 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.
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| Coefficients do not tell you [...]. | Coefficients do not tell you what the molecules, compounds, or atoms are.
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| 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.
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| 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.
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| 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.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
mr.shapard
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