What is the mole ratio of oxygen to water in the following equation? c3h8 + 5o2 - > 3co2 + 4h2o

10: 8

10: 9

5: 4

7: 7

Which position represents spring in the southern hemisphere? a) b) c) d)

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what