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Drupady [299]
4 years ago
10

Use the drop-down menu to complete the sentence.

Chemistry
1 answer:
Dmitriy789 [7]4 years ago
7 0

Answer: Comparisons .

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A selectively permeable membrane separates solution a and
Yakvenalex [24]
The water molecules will flow from b to a due to osmosis.

Osmosis is where water molecules will flow from a region of higher water potential to a region of lower water potential, through a selectively permeable membrane.

When the water molecule concentration is higher, it has a higher water potential top. Water potential is the tendency for them to flow to a lower region.

The net movement will stop until both sides of the solution has a same water potential.
3 0
3 years ago
How many photons are contained in a flash of green light (525 nm) that contains 189 kJ of energy?
adelina 88 [10]

Answer: 4.99×10²³ photons

Explanation: The energy of a photon is given as

E= hf

h= Planck constant = 6.626×10^-34Js

f= frequency = c/x

C= speed of light = 3×10^8 m/s

x= wavelength= 525nm= 525×10^-9

E= hc/x

E= 6.626×10^-34 × 3×10^8 m/s /( 525×10^-9)

E= 3.79×10^−19 J/ Photon

E= 3.79×10^−22KJ/Photon

189KJ/3.79×10^−22KJ/photon=

4.99×10²³photons.

Therefore the number of photons is

4.99×10²³photons.

4 0
3 years ago
Which is a resource that the National Park Service manages?
pantera1 [17]

Answer:

to preserve the integrity of the wildlife refuge, ecosystems and the endangered species.

Explanation:

A national park service manages

4 0
3 years ago
What appears to happen to the moon as it goes through the cycle ?
7nadin3 [17]

Answer:

The moon appears to change forms

Explanation:

As it rotates around Earth, sunlight only hits half of the moon which creates that impression

4 0
3 years ago
For a particular sample of and ideal gas. Suppose that the pressure is increased which of the following os a possible direct res
Svet_ta [14]
Using the ideal gas equation:
PV/T = constant

Therefore, the possible outcomes of increased pressure are:
Decreased volume if temperature is kept constant.
Increased temperature if volume is kept constant.
6 0
3 years ago
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