In the explosion of a hydrogen-filled balloon, 0.20 g of hydrogen reacted with 1.6 g of oxygen. How many grams of water vapor are formed? (Water vapor is the only product.) What equation should I use?

An example of technology is the a. addition of a side group to an organic molecule during synthesis. b. use of a new antibiotic to fight an infection. c. measurement of iron concentration in a water sample. d. study of atomic fusion reactions

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

List four observations that indicate that a chemical reaction may be taking place