If an Erlenmeye flask that is used in this titration contains 40.0 mL of 0.10 M HCI, how many moles of hydrogen ions are present at the point that is labeled A on the graph? a. 0.0025
b.0.0040
c.40.0
d.4000​

Balance this equation: n2 + h2 > nh3, write the following molar ratios: n2 / n2 / nh3 h2 /

Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. describe a test that could indirectly determine which of the versions significantly alters the three-dimensional shape of the lactase protein.

Element before carbon on the periodic table