Which of the following forces causes comets to regularly return to the inner solar system after being gone for many years? A. friction
B. magnetism
C. electromagnetic force
D. gravity

What phase of matter has particles that are held together but can flow past each other and takes the shape of a container, filling it from the bottom up?

Agas at 155 kpa and standard temperature has an initial volume of 1.00 l. the pressure of the gas rises to 500 kpa as the temperature also rises to 135°c. what is the new volume? 2.16 l 0.463 l 0.207 l 4.82 l

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