Q1 (H.Chem) Midterm Review (Due day of Final)

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What is an extensive property?

Back

An extensive property is a physical property that depends on the amount of substance present, such as volume or mass.

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What is an intensive property?

Back

An intensive property is a physical property that does not depend on the amount of substance present, such as density or boiling point.

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What is a homogeneous mixture?

Back

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

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What is a heterogeneous mixture?

Back

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

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What is a pure element?

Back

A pure element is a substance that consists of only one type of atom and cannot be broken down into simpler substances.

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What is a pure compound?

Back

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

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What is the base unit for length in SI units?

Back

The base unit for length in SI units is the meter.

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What does BrINClHOF stand for?

Back

BrINClHOF represents the diatomic elements that exist as pairs in nature: Bromine (Br), Iodine (I), Nitrogen (N), Chlorine (Cl), Hydrogen (H), Oxygen (O), and Fluorine (F).

Front

What is the proper technique for smelling chemicals in a lab?

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The proper technique for smelling chemicals is wafting, which involves gently waving your hand over the container to direct the scent towards your nose.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that object.