How many moles are in 3.45 x 10^26 atoms Rb?

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?

How hot is the suns corona? (integrated science)

Which formula equation represents the burning of sulfur to produce sulfur dioxide? s(s) + o2(g) 4502(9) 2h2s(s) + 302(g) —> 2h20(0) + 2502(9) 4fes2+1102 —> 2fe2o3 + 8502 2802(g) + o2(9) v205 , 2503(9)