Propane is a common fuel used for portable stoves. if a gas canister contains 0.283 dm^3 of propane, what is the maximum heat it can produce? (density of propane is 0.493 g/mL) C3H8(g) + 5 O2(g) -> 3 CO2(g) + 4 H2O(g)
delta H = -2221 kJ/mol

Find the empirical formula of each of the following compounds. given mass or for each element in a sample of the compound 3,611 g ca; 6.389 g c1

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space