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ch4aika [34]
3 years ago
11

Which of these is a covalent compund A NO2 B LiCl C AlCl3 D Na2S

Chemistry
1 answer:
ElenaW [278]3 years ago
6 0
A. NO2 is a covalent compound
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Which statement describes the reaction involved in cellular respiration?
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i think its b

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if you removed the C02 from the atmosphere that

willl make the 02 and it will

released for the atmosphere

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At a certain temperature the rate of this reaction is first order in HI with a rate constant of :0.0632s
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Explanation :

Expression for rate law for first order kinetics is given by :

k=\frac{2.303}{t}\log\frac{[A_o]}{[A]}

where,

k = rate constant  = 0.0632

t = time taken for the process  = ?

[A_o] = initial amount or concentration of the reactant  = 1.28 M

[A] = amount or concentration left time 't' = 1.28\times \frac{17}{100}=0.2176M

Now put all the given values in above equation, we get:

0.0632=\frac{2.303}{t}\log\frac{1.28}{0.2176}

t=28s

Therefore, the time taken for the reaction is, 28 s.

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