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dedylja [7]
3 years ago
15

Which of the following statements is true concerning biodiversity?

Chemistry
1 answer:
olchik [2.2K]3 years ago
6 0
Biodiversity is the diversity of species in an area, which makes an ecosystem
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Based on the weather map above, it is a good day to _____ in Utah.
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Fly a kite?? I can’t see the weather map so idk
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How many mL of a 4.50 (m/v)% solution would contain 23.0 g of solute?
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23.0 g/ (4.50 g/ mL) gives 5.11 mL as the volume.
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10. At 573K, NO2(g) decomposes forming NO and O2. The decomposition reaction is second order in NO2 with a rate constant of 1.1
leva [86]

Answer:

48.67 seconds

Explanation:

From;

1/[A] = kt + 1/[A]o

[A] = concentration at time t

t= time taken

k= rate constant

[A]o = initial concentration

Since [A] =[A]o - 0.75[A]o

[A] = 0.056 M - 0.042 M

[A] = 0.014 M

1/0.014 = (1.1t) + 1/0.056

71.4 - 17.86 = 1.1t

53.54 = 1.1t

t= 53.54/1.1

t= 48.67 seconds

Hence,it takes 48.67 seconds to decompose.

6 0
3 years ago
20g of butanedioic acid were shaken with a mixture of 100 cm3 ether and 100 cm3 water at 298K. After titration with standard sod
zlopas [31]

Answer:

I'm Not Good At Chemistry.

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Which of the following processes are exothermic and which are endothermic?
suter [353]

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c) A decrease in the temperature as ammonium nitrate is added to water is an endothermic reaction

7 0
3 years ago
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