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worty [1.4K]
3 years ago
7

What is the date of discovery of element Mercury

Chemistry
2 answers:
STALIN [3.7K]3 years ago
4 0

2000 BC and was found in tubes in Egyptian tombs dated from 1500BC

hope this helps

lesya692 [45]3 years ago
3 0
Before 2000BC by Chinese and egyptians
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The decomposition of N2O to N2 and O2 is a first-order reaction. At 730°C, the rate constant of the reaction is 1.94 × 10-4 min-
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Answer:

Total pressure 5.875 atm

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2N_2O \rightarrow 2N_2 + O_2

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initial           4.70                         0             0

change        -2x                          +2x           +x

final             4.70 -2x                     2x           x

pressure ofO_2 after first half life  = 2.35 = 4.70 - 2x

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pressure of N_2 after first half life  =  2x = 2(1.175) = 2.35 ATM

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