A mineral ranked higher in the mohs scale is relatively harder than other minerals. Mohs scale lists 10 minerals from the softest to hardest. The hardest mineral is diamon while the softest one is talc. The two minerals compared are scratched with each other. The scratched one is the softer mineral.
Answer:
Results from method B is more reliable than method A.
Explanation:
The two method that are used for the analysis produced different results. The first method that is method A gives higher value of the iodine content than the method B.
When
was added to water, method A showed an increased in the iodine content and it increases with the increase in the amount of
.
Where as in the method B, there is no change in the results. Therefore the measurements provided by the method A shows an inference of
ion.
The measurement of the iodine content is affected by the presence of the ion
in water.
Since in method B there is no change in measurement, it is independent of the presence
ion in water.
As higher iodine content is given by method A, so
ion must be present in original water that must be interfering the measurement. Hence, method B is more reliable.
The three particles found in an atom are the protons, neutrons and electrons. Protons have a positive charge. Electrons have negative charge. Lastly, neutrons have no net electrical charge. Protons and neutrons are much heavier than electrons and are located in the center of the atom.