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5 March, 04:25

How can you tell that the fireworks exploding during a Fourth of July display do not all contain the same ingredients?

A different colors of explosions

B different shapes of explosions

C different timing of explosions

D all of the above

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Answers (2)
  1. 5 March, 07:03
    0
    A - Different colours of explosions. Different materials will burn different colours.

    Element & flame color

    Calcium = orange-red

    Strontium = red

    Barium pale = green

    Copper = blue-green (often with white flashes)
  2. 5 March, 07:35
    0
    I am 90% sure it's A. I know that the different ingredients causes them to be different colors. The shapes and timings are usually man made.
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