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Kaylis [27]
3 years ago
11

In the Galapagos Islands, finches on different islands have beaks of different shapes, which help them gather the food that grow

s on the island where they live. The different types of beaks are what kind of adaptation?
A. structural adaptation
B. seasonal adaptation
C. behavioral adaptation
D. environmental adaptation
Chemistry
1 answer:
scZoUnD [109]3 years ago
7 0

Answer:

A. structural adaptation

Explanation:

Hope This Helps!!

God Bless!!

~DuffyDuck~

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Calculate the mass of nitrogen dissolved at room temperature in an 95.0 LL home aquarium. Assume a total pressure of 1.0 atmatm
harina [27]

Answer:

86.3 g  of N₂ are in the room

Explanation:

First of all we need the pressure from the N₂ in order to apply the Ideal Gases Law and determine, the moles of gas that are contained in the room.

We apply the mole fraction:

Mole fraction N₂ = N₂ pressure / Total pressure

0.78 . 1 atm = 0.78 atm → N₂ pressure

Room temperature → 20°C → 20°C + 273 = 293K

Let's replace data: 0.78 atm . 95L = n . 0.082 . 293K

(0.78 atm . 95L) /0.082 . 293K = n

3.08 moles = n

Let's convert the moles to mass → 3.08 mol . 28g /1mol = 86.3 g  

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State and explain the observations when chlorine gas is bubbled through a solution of
natta225 [31]

Answer:

A reduction-oxidation (redox) reaction will occur.

Chlorine gas (Cl2) will accept electrons to form Cl- ions.

The Iron(II) ions (Fe2+) will lose electrons to form Fe3+ ions. (Iron (III) ions)

Fe2+ ions are green, while Fe3+ ions are yellow,

so the observation will be the solution turning from green to yellow.

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Explanation:

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6 0
2 years ago
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a material has a density of 8.9 g/cm^3. You have six cubic centimeters of the substance. What is the material's mass in grams?
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