Chemistry Midterm 2024

Front

What is the definition of a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded together.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance that cannot be broken down into simpler substances, while a compound is a substance formed when two or more elements are chemically bonded together.

Front

What is a cation?

Back

A cation is an ion with a positive charge.

Front

What is a pure substance?

Back

A pure substance is a material that has a constant composition and consistent properties throughout.

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 is a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products.

Front

What does it mean to balance a chemical equation?

Back

Balancing a chemical equation means ensuring that the number of atoms for each element is the same on both sides of the equation.

Front

What is the role of coefficients in a chemical equation?

Back

Coefficients are numbers placed in front of compounds in a chemical equation to indicate the number of molecules involved in the reaction.

Front

What is an anion?

Back

An anion is an ion with a negative charge.

Front

What is the difference between a solute and a solvent?

Back

A solute is a substance that is dissolved in a solution, while a solvent is the substance that does the dissolving.