Gasoline has an octane number of 70.
what is the percent isooctane to the percent heptane in this sample of gasoline?

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

Choose all the answers that apply. as ocean depth increases, temperature decreases temperature increases pressure increases pressure decreases salinity increases density increases

If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?