Is burning a firework a chemical reaction AND WHY?

Answer 1

To burn something requires oxidation (usually with O2 in the case of combustion).. therefore 'burning' is a chemical reaction with oxygen (O2)... Fuel + Oxygen (in air) --> carbon dioxide + water (The above works in most cases, obviously sulfur [for e.g.] would give SO2 and no water) H3CCH2CH3 (g) + 5 O2 (g)--> 3 CO2 (g) + 4 H2O(l) Propane + Oxygen --> Carbon Dioxide + Water In the case of fire works the oxidiser is (usually) Potassium Nitrate (the Nitrate ion [NO3-] containing oxygen reacts in place of O2). This makes equations more complex but in esence the principle is the same. I think equations as follows: For Carbon component--------- 4 KNO3(s) + 5 C(s) --> 5 CO2(g) + 2 K2O(s) + 2 N2(g) For Sulfur Component----------- 4 KNO3(s) + 5 S(s) --> 5 SO2(g) + 2 K2O(s) + 2 N2(g)

Answer 2

With physical reactions, like water, you can always get the substance back to its original form. If you melt ice you get water, but you can refreeze it to get ice again. Its properties are not changing. With burning wood, the properties are changing. You can change the ash back into wood.
Because when you mix the chemicals together a chemical reaction occurs and a new gas is produced.

Oxgyen, Carbon Dioxide, and Hydrogen were all produced in this experiment.

Answer 3

Burning is a chemical reaction because it is the result of multiple chemicals reacting with one another to change into something else. These changes are irreversible.

Answer 4

physical cas you cant reverse the effect of burning, where as you can reverse the effect of a chemical change

Answer 5

Because a new components are formed and the reaction is irreversible

Answer 6

Yes, burning a firework involves a chemical reaction. The combustion of the compounds in the firework release energy in the form of heat and light, resulting in the colorful display seen in the sky.

Answer 7

because its fire

Answer 8

because it is