2c2h2(g) + 5o2(g) → 4co2(g) + 2h2o(g) this is a balanced equation for the combustion of acetylene(c2h2). How many moles of oxygen(o2) are required to react completely with 1. 0 mole of acetylene(c2h2)?.

From which college can you earn an associate's degree a. a four-year college b. a community college c. a vocational college d. a public university

Which statement best describes gravity? it is the force that repels only very small objects. it is the force that acts between objects with zero mass. it is the force that sometimes acts only on very large objects. it is the force that acts between any two objects in the universe.

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.