Saturn has spectacular rings of and that surrounded the planet.

a. ice, rock

b. helium, hydrogen

c. iron, steel

d. dust, carbon dioxide

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.

Balance the following reaction. as2s3 + 9o2 → 2as2o3 + so2