Chemistry I Final Exam Review

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together in a fixed ratio.

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 made up of two or more elements chemically combined.

Front

What determines whether an object will float or sink in a fluid?

Back

An object will float if it is less dense than the fluid it is in; it will sink if it is more dense.

Front

What is a physical property?

Back

A physical property is a characteristic of a substance that can be observed or measured without changing its chemical composition, such as color, density, and melting point.

Front

What is a chemical property?

Back

A chemical property describes a substance's ability to undergo a specific chemical change, such as reactivity with acids or flammability.

Front

What is the purpose of a Scoopula in a laboratory?

Back

A Scoopula is used to transfer solid chemicals from one container to another, especially for measuring or weighing.

Front

What is the definition of a homogeneous mixture?

Back

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

Front

What is the definition of a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture in which the composition is not uniform, and different components can be seen, such as salad.

Front

What is the significance of the blue color in a substance?

Back

The blue color is a physical property that can indicate the presence of certain compounds or elements, but does not change the substance's chemical identity.

Front

What is the role of density in buoyancy?

Back

Density plays a crucial role in buoyancy; objects with lower density than the fluid will rise, while those with higher density will sink.