Answer:
By writing an experiment report
Explanation:
1s^2 2s^2 2p^6
This is the electron configuration of 02-
It is also known as noble gas like configuration and in general it is stable if oxygen is like that in a compound (8 electrons in its 2s and 2p orbitals combined)
Answer: 94.07%
Explanation:
Percentage yield can be calculated by the formula
%yield = Experimental yield/Theoretical yield x100
Experimental yield = 7.93g
Theoretical yield = 8.43
%yield = Experimental yield/Theoretical yield x100
%yield = 7.93/8.43 x 100 = 94.07%
Examples of pure substances include tin, sulfur, diamond, water, pure sugar, table salt and baking soda. Crystals, in general, are pure substances. Tin, sulfur, and diamond are examples of pure substances which are chemical elements. All elements are pure substances.