Answer:
Statement (E) is correct.
Explanation:
Both mass number and atomic mass are integer. Both are unit less.
Atomic mass is approximately equal to mass number of an atom with an unit of daltons or amu or u.
Mass number = number of protons + number of neutrons
So mass number of N = 7 +7 =14
So, atomic mass of n atom = 14 daltons
Hence statement (E) is correct.
Answer: The student’s percent error is 3.16%.
Explanation:
Calculated mass of the block = 16.3 g
Actual mass of the block = 15.8 g
The student’s percent error is 3.16%.
Answer:
Statistics
Explanation:
The science of statistics deals with the collection, storage, manipulation, analyzing, visualizing and interpretation of data. Graphs and tables are very good tools in order to achieve statistical problems. Tables can be used to compare a given data set and present them in a very simple relational way. Graphs are useful for data visualization and their trend is vital in making interpretations.
The Tyndall effect is used to identify a mixture as a colloid.
