Hi everyone, so I'm kinda having a problem with balancing equations but without a product, It's my first year of taking chemistry so i'm kinda confused, here is an example. 4Fe+O2 THANKS, have a good one

Draw the lewis dot structure for each of the following polyatomic ions

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.

11) burning your hand when accidentally touching a hot plate is an example of which heat transfer? a. conduction b. convection c. radiation d. none of these