Classification of Matter

How many Sq atoms are in TSq^2R?

2

How many atoms are in the molecule of RSq?

2

How many different types of molecules are found in the sample of SqR3 & TSq?

2

How many different types of atoms are found in TSq^2R?

3

How many different types of atoms are found in the sample of SqR3 & TSq?

3

What is holding the atoms together in the diagram?

A chemical bond

What is H20?

A compound

What are elements?

A pure substance made up from only one atom

How are the codes (chemical formulas) for elements different from those for compounds?

Elements have only one type of symbol, while compounds have more than one type of symbol

How are the codes (chemical formulas) for pure substances different from those for mixtures?

Mixtures contain a '&', while pure substances do not

What are particles?

Particles can be single atoms or molecules

What are compounds?

Pure substances made from two or more types of atoms

What does R stand for?

Round

What does Sq stand for?

Square

What do the small numbers (subscripts) in the codes represent?

The number of a certain type of atom in a molecule

What is the common characteristic of the samples in which an '&' is used?

There are different types of particles

What is a mixture?

There are different types of particles present

When atoms are held together by a chemical bond, how is that communicated in the code?

There are no spaces between letters

What does T stand for?

Triangle

What is a pure substance?

When all of the particles are identical