Balancing Equations and Reaction Types

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has equal numbers of each type of atom on both sides of the equation, reflecting the conservation of mass.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

Front

What are the steps to balance a chemical equation?

Back

1. Write the unbalanced equation. 2. Count the number of atoms of each element on both sides. 3. Adjust coefficients to balance the atoms. 4. Check to ensure all elements are balanced.

Front

What is a synthesis reaction?

Back

A synthesis reaction is a type of chemical reaction where two or more simple substances combine to form a more complex product.

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What is a decomposition reaction?

Back

A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler products.

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What is a single displacement reaction?

Back

A single displacement reaction is a type of reaction where one element replaces another element in a compound.

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What is a double displacement reaction?

Back

A double displacement reaction is a type of reaction where the anions and cations of two different compounds exchange places to form two new compounds.

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What is combustion?

Back

Combustion is a chemical reaction that occurs when a substance reacts rapidly with oxygen, producing heat and light.

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How do you identify the type of reaction?

Back

To identify the type of reaction, look at the reactants and products and determine if they fit the definitions of synthesis, decomposition, single displacement, double displacement, or combustion.

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.