Counting Atoms

Front

What is a substance made up of atoms of two or more different elements joined by chemical bonds?

Back

Compound

Front

How many different elements are present in H2COCH2?

Back

3

Front

In the chemical formula C3H5(NO3)3, how many atoms of Carbon, Hydrogen, Nitrogen, and Oxygen are there?

Back

C = 3, H = 5, N = 3, O = 9

Front

How many Oxygen atoms are in Al(OH)3?

Back

3

Front

How many atoms of Hydrogen are in C6H12O6?

Back

12

Front

What is the definition of a molecule?

Back

A molecule is 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.

Front

What does the subscript in a chemical formula indicate?

Back

The subscript indicates 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)

Front

What is the chemical formula for water?

Back

H2O