A 10.0 mL solution of H2SO4 was completely neutralized by 15.8 mL of standard 0.200 M Ba(OH)2.
What is the concentration of the H2SO4?

When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons

May someone me with these science questions