Balancing Reactions

Front

What is a Decomposition Reaction?

Back

A Decomposition Reaction is a type of chemical reaction where one compound breaks down into two or more simpler products. Example: AB → A + B.

Front

What does it mean for a chemical equation to be balanced?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation, indicating that mass is conserved during the reaction.

Front

How can you tell if an equation is balanced?

Back

You can tell if an equation is balanced by counting the number of atoms of each element on both sides of the equation and ensuring they are equal.

Front

What is the product of the reaction: 2 H₂ + O₂ → ?

Back

The product is 2 H₂O (water).

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass cannot be created or destroyed in a chemical reaction; it can only change forms.

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What is a Synthesis Reaction?

Back

A Synthesis Reaction is a type of chemical reaction where two or more reactants combine to form a single product. Example: A + B → AB.

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What is a Single Replacement Reaction?

Back

A Single Replacement Reaction is a type of chemical reaction where one element replaces another in a compound. Example: A + BC → AC + B.

Front

What is a Double Replacement Reaction?

Back

A Double Replacement Reaction is a type of chemical reaction where the anions and cations of two different compounds exchange places, forming two new compounds. Example: AB + CD → AC + BD.

Front

How do you balance the equation: _Na + _Cl₂ → _NaCl?

Back

The balanced equation is 2 Na + Cl₂ → 2 NaCl.

Front

What is the coefficient in a chemical equation?

Back

A coefficient is a number placed in front of a chemical formula in an equation to indicate how many molecules or moles of that substance are involved in the reaction.