Answer:
Density is normally used in Chemistry and it means 'A measure of mass per volume' or simply defined as the measurement that compares the amount of matter an object has to its volume!
Hope this helped :3
Answer:
The answer is B.
Explanation:
They are the strongest type of inter-molecular force attractive forces that can act between atoms. This is why Vander Walls forces important.
Red #40 is soluble in water while zinc oxide is not.
So the easiest way to separate them is as follows:
1- add water to the mixture until red #40 is dissolved in the water
2- filter to separate the zinc oxide
4- heat the solution of red #40 and water until water evaporates and red#40 remains.
Answer:
21.344%
Explanation:
For the given chemical reaction, 8 moles of the reactant should produce 4 moles of 
. However, 195 g of was produced instead. The molar mass of is 61.9789 g/mol.
Thus, the moles of produced = 195/61.9789 = 3.1462 moles
The percent error = [(Actual -Experiment)/Actual]*100%
The percent error = [(4.00 - 3.1462)/4.00]*100% = (0.85376/4.00)*100% = 21.344%
