The reusable booster rockets of the U.S. space shuttle use a mixture of aluminium and ammonium perchlorate for fuel. A possible equation for this reaction is 3Al(s)+3NH4ClO4(s)→Al2O3(s)+AlCl3(s)+3NO2(g)+6H2O(s) What mass of NH4ClO4 should be used in the fuel mixture for every kilogram of Al? |
|||||||
(a) |
3kg |
(b) |
3.388g |
(c) |
4.351g |
(d) |
4kg |
The reusable booster rockets of the U.S. space shuttle use a mixture of aluminium and ammonium perchlorate for fuel. A possible equation for this reaction is 3Al(s)+3NH4ClO4(s)→Al2O3(s)+AlCl3(s)+3NO2(g)+6H2O(s) What mass of NH4ClO4 should be used in the fuel mixture for every kilogram of Al? |
|||||||
(a) |
3kg |
(b) |
3.388g |
(c) |
4.351g |
(d) |
4kg |
Cracking of propane is expected to yield |
|||
(a) |
propane and hydrogen |
(b) |
ethene and methane |
(c) |
ethane and methane |
(d) |
propene, ethene, methane and hydrogen |
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