Elements, Compounds, Mixtures

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that appears to be evenly mixed throughout, with a uniform composition.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture where the components are not uniformly distributed, and different parts can be seen.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a compound?

Back

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

Tags

NGSS.MS-PS1-1

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.

Front

What defines a pure substance?

Back

A pure substance is either an element or a compound, having a consistent composition and properties.

Front

What is the difference between an element and a compound?

Back

An element is a single type of atom, while a compound consists of two or more different types of atoms chemically bonded together.

Front

Can a mixture be separated?

Back

Yes, mixtures can be separated into their individual components by physical methods such as filtration or distillation.

Front

What does it mean for a mixture to be uniform?

Back

A uniform mixture has the same composition and properties throughout, characteristic of a homogeneous mixture.

Front

What is an example of a homogeneous mixture?

Back

An example of a homogeneous mixture is saltwater, where the salt is evenly dissolved in the water.