There is a 0.6 M stock solution and you are tasked with making 0.4 L of a 0.3 M dilution. How much of the stock solution is required? *
2 points
4L
.2L
.6L
O.8L

Compare and contrast physical changes with chemical changes.

How is the shape of the poem “peer” connected to its meaning?

Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope