Counting Atoms

Front

What is the chemical formula for water?

Back

H₂O

Front

How many atoms of Hydrogen are in H₂O?

Back

2

Front

How many different elements are present in H₂COCH₂?

Back

3

Front

What is O₂ classified as?

Back

Element

Front

How many different elements are present in the molecule 3 NH₄C₂H₃O₂?

Back

4

Front

What is an atom?

Back

The smallest unit of a chemical element, consisting of a nucleus surrounded by electrons.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

What is the difference between an element and a compound?

Back

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

Front

What does the subscript in a chemical formula indicate?

Back

The number of atoms of the element in the molecule.

Front

What is the total number of atoms in the molecule C₆H₁₂O₆?

Back

24 (6 Carbon + 12 Hydrogen + 6 Oxygen = 24 total atoms)