Question 12 of 25 What are spectator ions?
O A. lons that form when a compound dissolves
O B. lons that are left over after a precipitate is formed
O C. lons that are not changed in the reaction
O D. Ions that combine to form a precipitate

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

Why is permeable soil best for plants that need a lot of drainage?

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?