CBA 2 (Acids/Bases, Pure vs Mixtures, LOCM, Properties of Water

Front

What is an acid?

Back

An acid is a substance that donates protons (H+) in a solution and has a pH less than 7.

Front

What is a base?

Back

A base is a substance that accepts protons (H+) or donates hydroxide ions (OH-) in a solution and has a pH greater than 7.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture in which the composition is uniform throughout, such as saltwater.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture in which the composition is not uniform, such as a salad.

Front

What does LOCM stand for?

Back

Law of Conservation of Mass, which states that mass is neither created nor destroyed in a chemical reaction.

Front

What is the pH scale?

Back

The pH scale measures how acidic or basic a solution is, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What is the chemical formula for potassium oxide?

Back

KO₂.

Front

What are reactants in a chemical equation?

Back

Reactants are the starting substances in a chemical reaction, found on the left side of the equation.

Front

What is the product in a chemical reaction?

Back

The product is the substance formed as a result of a chemical reaction, found on the right side of the equation.

Front

What is the mass of potassium oxide produced when 100g of potassium reacts with 24g of oxygen?

Back

124 grams.