Emest Rutherford proved that the plum pudding model was incorrect then he experimented by firing cathode rays at gold foil.
Answer:
History is the study of the past in all its forms. Philosophy of history examines the theoretical foundations of the practice, application, and social consequences of history and historiography. It is similar to other area studies – such as philosophy of science or philosophy of religion – in two respects.
Explanation:
Check every element at both sides
Element left side right side conclusion
Fe 2 1 not balanced
O 3+3=6 3*2=6 balanced
C 3 3 balanced
Answer: only Fe is unbalanced (2 atoms at the left side and 1 atom at the right side)
First you have to look at the mole ratios of the reactants and products and that ratio is 2:2:2 or you can reduce that to 1:1:1. That means an amount of peroxide will produce the same amount of oxygen gas. If there are 8 mol of peroxide will give 8 mol of oxygen gas
