Flashcardizz Review FE5: ECM

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically combined. Examples include Kool-aid and air.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together. Examples include water (H2O) and carbon dioxide (CO2).

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. Examples include hydrogen (H) and oxygen (O).

Front

What is bronze?

Back

Bronze is an alloy, which is a type of mixture made primarily of copper and tin, along with other metals.

Front

What distinguishes a compound from a mixture?

Back

A compound consists of elements that are chemically combined, while a mixture consists of substances that are physically combined.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H2O, indicating it is a compound made of two hydrogen atoms and one oxygen atom.

Front

Can a mixture be separated by physical means?

Back

Yes, mixtures can be separated by physical means such as filtration, distillation, or evaporation.

Front

What is an example of a homogeneous mixture?

Back

An example of a homogeneous mixture is saltwater, where the salt is evenly distributed throughout the water.

Front

What is an example of a heterogeneous mixture?

Back

An example of a heterogeneous mixture is a salad, where the different ingredients can be seen and separated.

Front

What is the difference between an alloy and a compound?

Back

An alloy is a mixture of metals, while a compound is a substance formed from two or more elements chemically bonded.