C3 - Reacting masses Flashcards
1
Q
What is the relative atomic mass?
A
The larger number on the periodic table.
2
Q
What is the history of the periodic table?
A
1) John Dalton arranged six known elements in sequence comparing their mass
2) he concluded that the Ar is how many times heaver than hydrogen something is
3) Dmitri Mendeleev used this idea to create the periodic table
3
Q
What is conservation of mass?
A
Conservation of mass is when mass in a reaction never changes.
