Counting Atoms

Front

What is the chemical formula for Sodium Chloride?

Back

NaCl

Front

How many atoms are in one molecule of water (H2O)?

Back

3 (2 Hydrogen + 1 Oxygen)

Front

What is a compound?

Back

A substance formed when two or more elements chemically bond together.

Front

How many total atoms are in the compound 2H2O?

Back

6 (4 Hydrogen + 2 Oxygen)

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.

Front

How many chlorine atoms are in 3NaCl?

Back

3

Front

What is the chemical symbol for Magnesium?

Back

Mg

Front

How many total atoms are in the compound 4CO2?

Back

12 (4 Carbon + 8 Oxygen)

Front

Which of the following is an element: H2O, NaCl, O2, CO2?

Back

O2

Front

How many atoms are in 5MgCl2?

Back

15 (5 Magnesium + 10 Chlorine)