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Alex787 [66]
2 years ago
7

Some species of hares are brown most of the year, but change color to white in the winter. This allows them to blend in

Chemistry
1 answer:
muminat2 years ago
7 0

Answer:

Deciduous forests

Explanation:

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A photon of light has an energy of 1.83 x 10-18). What is the wavelength of this light? Does this light fall in the IR, visible,
Scrat [10]

Answer:

1.09 × 10⁻⁷ m

UV region

Explanation:

Step 1: Given and required data

Energy of the photon of light (E): 1.83 × 10⁻¹⁸ J

Planck's constant (h): 6.63 × 10⁻³⁴ J.s

Speed of light (c): 3.00 × 10⁸ m/s

Step 2: Calculate the wavelength (λ) of this photon of light

We will use the Planck-Einstein's relation.

E = h × c/λ

λ = h × c/E

λ = 6.63 × 10⁻³⁴ J.s × (3.00 × 10⁸ m/s)/1.83 × 10⁻¹⁸ J = 1.09 × 10⁻⁷ m

This wavelenght falls in the UV region of the electromagnetic spectrum.

4 0
3 years ago
How many moles would there be in 20.0 g of sodium chloride?
deff fn [24]

Answer:

20.0/1 x 1mole/58.44=0.34

                 (Atomic mass of salt)

Been a minute since I've done this, but this is how I remember doing it, soo..hope this helps!

6 0
3 years ago
Who is Scavenger and how does it work ​
kolezko [41]
Scavengers are animals that consume dead organisms that have died from causes other than predation. While scavenging generally refers to carnivores feeding on carrion, it is also a herbivorous feeding behavior. Scavengers play an important role in the ecosystem by consuming dead animal and plant material.
6 0
3 years ago
How many moles of MgS2O3 are in 247 g of the compound?
lara [203]
Moles of MgS2O3 = 247/136 = 1.81 moles. Molecular mass of MgS2O3 = 136
6 0
3 years ago
Four conditions which cause a metathesis reaction to occur?
zubka84 [21]
Metathesis is a type of reaction in which the cations and anions exchange partners. this reaction is also called double replacement. Metathesis reactions are driven by the formation of a product .this reaction is classified into three different categories: formation of precipitate, f<span>ormation of a Weak or Non-electrolyte and production of the gas.</span>
4 0
3 years ago
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