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horsena [70]
3 years ago
14

Given that water serves as an environmental thermoregulator, which of the following biomes would you expect to have the most sta

ble temperatures?
a.
temperate forest
b.
grassland
c.
rainforest
d.
aquatic


Please select the best answer from the choices provided
Chemistry
2 answers:
myrzilka [38]3 years ago
8 0

Answer:

D. aquatic

Explanation:

edge 2020

sweet [91]3 years ago
3 0

Answer:

Aquatic.

Explanation:

The temperature regulation is related to presence of water in a particular biome.

a) Temperate forest: This is a biome with a moderate in the moderate climates and is in between the regions of tropics and boreal.

b) grassland : This mainly have long grasses, flowers and herbs.

c) rainforest: They have extreme temperature conditions of high and low due to presence of tress and not water only.

d) aquatic : this biome has water so it will have most stable temperature.

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g Phosphorus -32 is a commonly used radioactive nuclide in biochemical research, particularly in studies of nucleic acids. The h
Setler79 [48]

Answer:

6.88 mg

Explanation:

Step 1: Calculate the mass of ³²P in 175 mg of Na₃³²PO₄

The mass ratio of Na₃³²PO₄ to ³²P is 148.91:31.97.

175 mg g Na₃³²PO₄ × 31.97 g ³²P/148.91 g Na₃³²PO₄ = 37.6 mg ³²P

Step 2: Calculate the rate constant for the decay of ³²P

The half-life (t1/2) is 14.3 days. We can calculate k using the following expression.

k = ln2/ t1/2 = ln2 / 14.3 d = 0.0485 d⁻¹

Step 3: Calculate the amount of P, given the initial amount (P₀) is 37.6 mg and the time elapsed (t) is 35.0 days

For first-order kinetics, we will use the following expression.

ln P = ln P₀ - k × t

ln P = ln 37.6 mg - 0.0485 d⁻¹ × 35.0 d

P = 6.88 mg

3 0
3 years ago
Which shape of ice melts the fastest? cylinder, cube, or rectangular cube?
Gnoma [55]
They will melt at the same rate because they contain the same matter
hope this helps and good luck on your project!!!!
3 0
3 years ago
Read 2 more answers
At a certain temperature the vapor pressure of pure benzene is measured to be . Suppose a solution is prepared by mixing of benz
Marianna [84]

Answer:

P(C₆H₆) = 0.2961 atm

Explanation:

I found an exercise pretty similar to this, so i'm gonna use the data of this exercise to show you how to do it, and then, replace your data in the procedure so you can have an accurate result:

<em>"At a certain temperature the vapor pressure of pure benzene (C6H6) is measured to be 0.63 atm. Suppose a solution is prepared by mixing 79.2 g of benzene and 115. g of heptane (C7H16) Calculate the partial pressure of benzene vapor above this solution. Round your answer to 2 significant digits. Note for advanced students: you may assume the solution is ideal".</em>

<em />

Now, according to the data, we want partial pressure of benzene, so we need to use Raoul's law which is:

P = Xₐ * P°    (1)

Where:

P: Partial pressure

Xₐ: molar fraction

P°: Vapour pressure

We only have the vapour pressure of benzene in the mixture. We need to determine the molar fraction first. To do this, we need the moles of each compound in the mixture.

To get the moles:   n = m / MM

To get the molar mass of benzene (C₆H₆) and heptane (C₇H₁₆), we need the atomic weights of Carbon and hydrogen, which are 12 g/mol and 1 g/mol:

MM(C₆H₆) = (12*6) + (6*1) = 78 g/mol

MM(C₇H₁₆) = (7*12) + (16*1) = 100 g/mol

Let's determine the moles of each compound:

moles (C₆H₆) = 79.2 / 78 = 1.02 moles

moles (C₇H₁₆) = 115 / 100 = 1.15 moles

moles in solution = 1.02 + 1.15 = 2.17 moles

To get the molar fractions, we use the following expression:

Xₐ = moles(C₆H₆) / moles in solution

Xₐ = 1.02 / 2.17 = 0.47

Finally, the partial pressure is:

P(C₆H₆) = 0.47 * 0.63

<h2>P(C₆H₆) = 0.2961 atm</h2>

Hope this helps

7 0
3 years ago
a chef is using honey in a recipe. The honey is too thick to pour out of the jar. How could the chef make the honey easier to po
Andrej [43]
Heat the jar of honey up enough to where you can pour it
5 0
3 years ago
Read 2 more answers
Geraldo wants to model the effect of acids on the pH of
Furkat [3]

Answer: Pesticide and less than 6.65

Explanation:

E2020

6 0
3 years ago
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