C3h8 + 5o2 -> 3co2 + 4h2o
according to this equation, which ratio of oxygen to propane is correct?

1- 5 grams o2 / 1 gram c3h8
2- 5 moles o2 / 1 mole c3h8
3- 10 grams o2 / 11 grams c3h8
4- 10 moles o2 / 11 moles c3h8

How does chemistry affect our world? a. chemicals makes our world more polluted. b. chemicals keeps us healthy. c. chemicals can or hurt our world. d. chemicals make our world safe to live in.

Ineed with my science work! it’s due tomorrow!

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.