Planets in our solar system do not revolve around the sun in perfect circles. their orbits are more like ovals that scientists describe as which of the following?
a.
revolutionary
b.
rotational
c.
periodical
d.
elliptical

Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.

Write a brief passage describing a neutral atom of nitrogen-14 (n-14). describe the number of protons, neutrons, and electrons in the atom, where each type of particle is located, and how the terms atomic number, mass number, and atomic mass are related to the particles. use the periodic table to you. 14 protons and eletrons since its a neutral atom

List four observations that indicate that a chemical reaction may be taking place