Ineed ! how many moles are in 3.4*10^-7 grams of silicon dioxide, sio2. i got 2.0^17 but i think it's wrong : (

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

Which statement correctly describes potassium iodide, ki? there is a one-to-one ratio of potassium ions to iodide ions. potassium gains electrons and iodine loses electrons during the reaction. the lattice is held together by potassium anions and iodide cations.

Rays from the sun are not considered matter true or false