Week 30 Flashcard

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, following the law of conservation of mass.

Front

What is the coefficient in a chemical equation?

Back

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

Front

What type of reaction is represented by the equation: CH4 + 2O2 -> CO2 + 2H2O?

Back

This is a combustion reaction, where a hydrocarbon reacts with oxygen to produce carbon dioxide and water.

Front

What is an acid-base neutralization reaction?

Back

An acid-base neutralization reaction occurs when an acid reacts with a base to produce water and a salt.

Front

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.

Front

What does the symbol (s) indicate in a chemical equation?

Back

The symbol (s) indicates that the substance is in a solid state.

Front

What does the symbol (g) indicate in a chemical equation?

Back

The symbol (g) indicates that the substance is in a gaseous state.

Front

What does the symbol (l) indicate in a chemical equation?

Back

The symbol (l) indicates that the substance is in a liquid state.

Front

What does a catalyst do in a chemical reaction?

Back

A catalyst speeds up a chemical reaction without being consumed in the process.

Front

What is a double replacement reaction?

Back

A double replacement reaction is a type of chemical reaction where two compounds exchange ions or bonds to form two new compounds.