I NEED HELP IMMEDIATELY!! ON THE QUIZ NOW How are Van Allen belts formed?
High-energy particles from the Sun get trapped in Earth’s magnetic field.
Metals in Earth’s core sink and rise, producing a circular movement of the metals.
Particles in solar wind travel along lines of Earth’s magnetic field and collide with gas atoms.
Material from the surface of the Sun erupts and forms a loop due to the Sun’s magnetic field.

Which of the following happens during cell division? (a) energy is created (b) waste is eliminated (c) carbon dioxide is released (d) damaged cells are replaced

Kc = 0.040 for the system below at 450oc. if a reaction is initiated with 0.40 mole of cl2 and 0.40 mole of pcl3 in a 2.0 liter container, what is the equilibrium concentration of cl2 in the same system? pcl5(g) ⇄ pcl3(g) + cl2(g)

Calculate: select the worksheet tab. this tab you calculate the analyte concentration.  fill in the first set of boxes ("moles h2so4" and "moles naoh") based on the coefficients in the balanced equation. (if there is no coefficient, the value is 1.)  record the appropriate volumes in the "ml naoh" and "ml h2so4" boxes.  record the concentration of the titrant in the m naoh box. click calculate. what is the concentration listed