Write and balance the equation for the complete combustion of heptane, C7H6. Phase symbols and energy changes are optional.

How have the greenhouse gasses increased from the year 2000 to 2018

Surface currents are caused by blank space . question 14 options: surface currents are caused by? differences in water temperature high salinity differences in density wind forces

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.