Which represents the self-ionization of water at 25°C? O A. H2O + H20 = 2H2 + O2 OB. H2O + H2O = H2O2 + H2 O C. H2O + H2O = 4H+ + 202- OD. H2O + H20 = H30+ + OH-
Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.
Ants live on acacia trees in south america. the ants feed on sugars secreted by the trees. the trees provide room for the ants to live. the ants sting any other insect or animal that comes to eat the trees. what type of relationship is this?