A scientist described two modern-day species as sharing a common ancestor. What does it mean when two species share a common ancestor?

Using complete sentences, explain how to predict the products and balance the reaction between sulfuric acid and potassium hydroxide.

Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?

An atom's configuration based on its number of electrons ends at 3p4. another atom has seven more electrons. starting at 3p, what is the remaining configuration? 3p63d34s2 3p43d54s2 3p64s23d3 3p44s23d