Uma solução do ácido perclórico (HCIO) foi preparada com 0,1 mol em 500 mL de solução. Calcule a concentração de quantidade de matéria. Obs:Desenvolva a questão;não precisa fazer a conta.

This line graph compares the growth of plants that were kept in the sun for different amounts of time.a)  on day 7, the plants kept in the sun for 3 hours were how tall? b)  on day 7, the plants kept in the sun for 6 hours were how tall? c)    on day 10, the plants kept in the sun for 9 hours were how tall? d)  on day 11, the plant that was grown with 1 hour of sunlight was how tall? e)  based on the graph, the plant grows best in what amount of sunlight?

How can one make a supersaturated solution? (apex)

The element that has the greatest electronegativity is