In a gas stove, propane (c3h8) is mixed with oxygen gas (o2) from the air and ignited to burn. the products of the reaction are given off as gases and consist primarily of carbon dioxide (co2) and water (h2o). which equation shown is the correct balanced equation for the reaction that occurs in burning a gas stove? a) c3h8 + 10 o2 → 3 co2 + 4 h2o b) 4 c3h8 +5 o2 → 3 co2 + 4 h2o c) c3h8 + 5 o2 → 3 co2 + 4 h2o d) c3h8 + 3 o2 → 3 co2 + 4 h2o

Compare and contrast physical changes with chemical changes.

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b.colder climates near the equator c.large waves on the cost of europe d.warm climates in northern europe

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.