Which of this is the method by which fire extinguisher works?
a) the cut of oxygen supply to...
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Which of this is the method by which fire extinguisher works?
a) the cut of oxygen supply to the burning substance.
b) the reflect away the heat because of there colour and does cool down the burning substance.
c)the exert force on the substances, that has caught on fire because of which the fire gets extinguish.
d)they release chemicals, which react with oxygen in the air and stop it form reaching the burning substances.
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Chemistry, 23.06.2019 01:30, jonmorton159
At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.
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