Ethylene c2h2 reacts with oxygen according to the equation below. what volume of oxygen (in dm3) reacts with 0.40 dm3 of c2h2 ?
2c2h2 (g) 5o2 (g) → 4 co2 (g) 2h2o(g) ? (1) 0.4 (3) 0.80(2) 1.0 (4) 2.0

Which traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail

This element exists in adundance in the sun. explain how you would go about capturing sunlight. would this captured sunlight contain any of the element?

Which of the following statements about acidic water is true? a. acid has no effect on the h, o molecules. b. the solution contains a larger number of oh ions than h, o ions. c. the solution contains a larger number of h, o ions than qh ions. d. the solution contains an equal number of h, o ions and oh ions. none of the above e.