Answer:
I don't know
Explanation:
Maybe they shouldn't copy each other
Could you show the characteristics?
Answer
Gymnastics
Explanation:
for the simple fact that they do cool stuff
Answer:
60-20=40km west because the direction Will favour whichever direction is bigger
Answer: The mass percentage of 
is 5.86%
Explanation:
To calculate the mass percentage of in the sample it is necessary to know the mass of the solute ( in this case), and the mass of the solution (pesticide sample, whose mass is explicit in the letter of the problem).
To calculate the mass of the solute, we must take the mass of the 
precipitate. We can establish a relation between the mass of and using the stoichiometry of the compounds:
Since for every mole of Tl in there are two moles of Tl in , we have:
Using the molar mass of we have:
Finally, we can use the mass percentage formula:
