2024 Fall Semester Exam Review Flashcardizz #2

Front

What is combustion?

Back

Combustion is a chemical reaction that occurs when a hydrocarbon reacts with oxygen, producing carbon dioxide and water.

Front

What is the limiting reagent in a chemical reaction?

Back

The limiting reagent is the reactant that is completely consumed first in a chemical reaction, limiting the amount of product formed.

Front

What does the symbol (aq) represent in a chemical equation?

Back

The symbol (aq) indicates that a substance is dissolved in aqueous solution, meaning it is mixed with water.

Front

What is the activity series in chemistry?

Back

The activity series is a list of metals arranged in order of decreasing reactivity, used to predict whether certain chemical reactions will occur.

Front

How do you determine the excess reactant in a chemical reaction?

Back

To determine the excess reactant, calculate the amount of each reactant used and compare it to the stoichiometric ratios from the balanced equation.

Front

What is the product of the reaction between calcium and hydrofluoric acid?

Back

The reaction produces calcium fluoride (CaF2) and hydrogen gas (H2).

Front

What is the difference between a synthesis reaction and a decomposition reaction?

Back

A synthesis reaction combines two or more substances to form a new compound, while a decomposition reaction breaks down a compound into simpler substances.

Front

What is the formula for calculating moles from grams?

Back

Moles = grams / molar mass.

Front

What is the significance of the coefficients in a balanced chemical equation?

Back

Coefficients indicate the relative amounts of reactants and products involved in the reaction.

Front

What is a single replacement reaction?

Back

A single replacement reaction occurs when one element replaces another in a compound.