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Oliga [24]
2 years ago
14

Without the atmosphere, life on Earth would not be possible. Which of the following is NOT an explanation for how Earth’s atmosp

here protects life on the planet?
A. It allows visible light to pass through completely.


B. It contains gases that filter out ultraviolet radiation.

C. It keeps Earth warm by trapping in heat.

D. It protects life from ultraviolet rays of light
Chemistry
2 answers:
kvasek [131]2 years ago
3 0

Answer:

B

Explanation:

IM A CHEMISTRY WIZZZZ

:)

I hope u get full marks on your paper/test/quiz or whatever!

There is a 20 percent chance so stay positive!

Alex73 [517]2 years ago
3 0

Answer:

D

Explanation: ultraviolet rays are harmful to humans

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You discover a piece of jewelry that you think might be made of silver. You place the item on a balance and determine that it ha
Amanda [17]

No, this item is not made of pure silver because if it has been made from pure silver that it would have displaced only 1.16cm³ of water but due to the addition of some other low-density element it displaces 1.9cm³ of water.

<u>For pure silver</u>

density of pure silver is = 10.49 g/cm³

mass of silver = 12.2 gram

since, density = mass/volume

          volume = mass/density

                        = 12.2/10.49 cm³

                         = 1.16 cm³

But the actual displaced water is <u>1.9cm³</u>, which means some other element of lower density has been added.

Therefore, it is clear that the given jewelry is not made of pure silver.

Learn more about silver here:-brainly.com/question/17086277

#SPJ1

4 0
1 year ago
The rate law for the reaction
juin [17]

Explanation:

Since, the given reaction is as follows.

              2NO(g) + Cl_{2}(g) \rightarrow 2NOCl(g)

Hence, rate law of the reaction is as follows.

               R = k[NO][Cl_{2}]

As it is known that rate of a reaction depends on the initial concentration of products. So here, the rate of reaction will depend on the concentration of NO and Cl_{2}. Since, power of the concentrations of each of these is equal to 1. Therefore, order of the reaction is equal to 1 + 1 = 2.

According to the rate law, reactants involved in the rate determining step are NO and Cl_{2}. Hence, first step of the mechanism is the rate determining step.

Also, according to the rate of reaction doubling the concentration of NO will double the rate of reaction.

The number of reactants taking part in a single step of the reaction is known as molecularity of the reaction. Therefore, molecularity of the first step of the reaction is 2.

Both the given steps are not termolecular.

5 0
3 years ago
Given the formula for an organic compound:
Dmitriy789 [7]
Based on the picture,
The name given to the group in the box would be : Ethyl

You can see that in the picture it has 2 carbon side chains, which mean it categorized as Ethyl

hope this helps
3 0
3 years ago
Read 2 more answers
The symbol "aq" stands for aqueous,which means that something is dissolved in water? ture false ​
Contact [7]
The answer is true I believe !
8 0
3 years ago
Read 2 more answers
The colors of transition metal complexes result from transitions in which a. vibrations of the ligands are excited to higher ene
sasho [114]

Answer:

c. electrons of the transition metal ion are excited to higher energies.

Explanation:

4 0
2 years ago
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