This describes "what goes on" during a chemical reaction.
What is a chemical equation?
100
2H2 + O2----> 2H2O
The mass of oxygen required to react with 4g of H is this amount.
What is 32g of O?
100
This man is known for inventing the vacuum tube.
Who is Julius Plucker?
100
The name of an experiment, from which the charge of an electron was directly obtained.
What is oil drop experiment?
200
The fact that the sum of the masses of the reactants is equal to the sum of the masses of the products is described by this law.
What is the Law of Conservation of Mass
200
The percentage composition for carbon dioxide are these values.
What are 27% and 73%.
200
This man is credited for the discovery of the electron using a gas discharge tube.
Who is JJ Thompson?
200
This evidence supports the fact that an electron has a charge of -1.9 X 10-19 C
What is all other charges were whole number multiples of the smallest charge OR it was the smallest charge Millikan calculated for a single oil drop?
300
This can be used after coefficients are added, to demonstrate the Law of Conservation of Mass.
What is a balanced equation.
300
This interpretation could be made, based upon the fact that a cathode ray will cast a shadow.
What is, a cathode ray must be made of particles?
400
The fact that water contains 11% H and 89% O is supported by this law.
What is the Law of Definite Proportions?
400
This interpretation could be made, based upon the fact that an electrical plate with a positive charge will attract a cathode ray.
What is, a cathode ray must have a negative electrical charge?
500
This law states that compounds containing the same elements do so in whole number ratios.
What is the Law of Multiple Proportions?
500
The calculated mass of an electron is this, given the charge of an electron to be -1.6 X 10-19 C and the charge-to-mass ratio for electrons to be -1.7588 X 108 C/g.