Chemistry Flashcard

Front

What is one of the few substances that are less dense as a solid than as a liquid?

Back

Water is one of the few substances that is less dense as a solid (ice) than as a liquid, which is why ice floats on water.

Front

What is the backbone of life in organic chemistry?

Back

Carbon is considered the backbone of life in organic chemistry due to its ability to form stable bonds with many elements, including itself.

Front

What is the dissolving agent in a solution called?

Back

The dissolving agent in a solution is called a solvent.

Front

What is the pH of a neutral aqueous solution at 25 degrees C?

Back

The pH of a neutral aqueous solution at 25 degrees Celsius is 7.

Front

What is a substance that reduces the hydrogen ion concentration of a solution called?

Back

A substance that reduces the hydrogen ion concentration of a solution is called a base.

Front

What is the process of a solid turning into a gas without becoming a liquid called?

Back

The process of a solid turning directly into a gas without becoming a liquid is called sublimation.

Front

What is the term for a mixture that has a uniform composition throughout?

Back

A mixture that has a uniform composition throughout is called a homogeneous mixture.

Front

What is the law that states that mass is neither created nor destroyed in a chemical reaction?

Back

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

Front

What is the term for the amount of solute that can dissolve in a given amount of solvent at a specific temperature?

Back

The term for the amount of solute that can dissolve in a given amount of solvent at a specific temperature is called solubility.

Front

What is the term for a reaction that absorbs heat from the surroundings?

Back

A reaction that absorbs heat from the surroundings is called an endothermic reaction.