Some Basic Concepts of Chemistry Flashcards
1
Q
Law of Conservation of Mass
A
Mass can neither be created nor destroyed in a chemical reaction
2
Q
Law of Definite Proportions
A
A given compound always has the same proportion of elements by weight
3
Q
Law of multiple proportions
A
If two elements combine to form more than 2 compounds, then the masses of one element that combines with the fixed mass of the other element, are in the ratio of simple whole numbers
4
Q
Gay Lussac’s Law of Gaseous Volumes
A
When gases combine or are produced in a chemical reaction, they do so in simple ration by volume
5
Q
Avogadro’s Law
A
Equal volumes of all gases at same temp and pressure should contain equal number of molecules
6
Q
Find Molecular mass using vapor density
A
2 x Vapor Density = Molecular Mass
