Counting Atoms

Front

What is the formula for calculating the number of atoms in a compound?

Back

To find the total number of atoms in a compound, add the subscripts of all elements in the formula.

Front

What does a subscript in a chemical formula indicate?

Back

A subscript indicates the number of atoms of the element in the compound.

Front

How many Oxygen atoms are in Al₂(SO₄)₃?

Back

12

Front

What is C₂H₈O?

Back

Compound

Front

Are there any compounds on the periodic table?

Back

No, because only elements are on the periodic table.

Front

How many elements are in C₆H₁₂O₆?

Back

3

Front

What is a chemical formula?

Back

A chemical formula is a way of expressing the number and type of atoms in a compound.

Front

What does the symbol 'C' represent in chemistry?

Back

The symbol 'C' represents the element Carbon.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the significance of the coefficients in a chemical equation?

Back

Coefficients indicate the number of molecules or moles of a substance involved in a reaction.