PS: 9.2 Types of Matter

Most elements are found in compounds.

Components of mixtures rarely can be separated

John Dalton made all the following contributions to our knowledge of atoms except

Which statement is false about the atoms of a given element?

Iron and nickel are both

Which drink is an example of a compound?

Table salt is an example of a compound that forms molecules

The idea of elements was first introduced by John Dalton

An example of a heterogeneous mixture is

A molecule consists of two or more atoms

I am lighter than air and used to fill balloons. Which element am I?

A compound has the same properties as the substances it contains

A package of mixed seeds is a homogeneous mixture

The substances in a mixture may be elements or compounds

Each element has a unique set of properties

Which mixture has the largest particles?

Mixtures are classified on the basis of particle size