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16 Which change results in the formation of different substances?(1) burning of propane (2) melting of NaCl (s) (3) deposition of CO2(g) (4) solidification of water

Craig Stewart

in Chemistry

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Craig Stewart on April 25, 2018

1. The burning of propane creates different substances: propane and oxygen combine to form water and carbon dioxide:C3H8 + 5 O2 becomes 3 CO2 + 4 H2O + heat2. When the NaCl melts, is the change of state, but remains the same for NaCl.3. When gaseous CO2 deposits is the change of state, but remains the same for CO2.4. When (it is assumed that the liquid water solidifies, is the change of state, but still the same water.So the answer is 1.


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