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alexira [117]
4 years ago
14

Scientists noticed that the ozone layer was thinning. What was occurring at the same time?

Chemistry
1 answer:
Mazyrski [523]4 years ago
7 0
At the same time there is increased usage of chlorofluorocarbon [CFC].
CFC are halogenated compounds which have ability to destroy the ozone layer. When ultraviolet ray strike CFC in the atmosphere, it breaks the forces holding the molecule together and yield a chlorine atom. The chlorine atom then react with the ozone layer, breaking it apart and destroying it.<span />
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Which of these is a chemical property of a substance?
valentinak56 [21]
Color, the other answers arent changing the substance into something different
3 0
4 years ago
Did I balance this correctly?
garik1379 [7]
Yes you balanced it correctly  :  CH₃CH₂CH₃ ₍g₎  +  5O₂ ₍g₎  ------->  3CO₂ ₍g₎  +  4H₂O ₍g₎

A hack to checking if its correct when they give you the structural formula of one of the species (CH₃CH₂CH₃) is to convert it to the molecular formula and if you get the same answer then it's correct.

So CH₃CH₂CH₃ is the struct-formula for the molec-formula C₃H₈

C₃H₈  +  5O₂  -------->  3 CO₂   +   4H₂O   (which means your correct =D)

6 0
3 years ago
An argon ion laser emits light of wavelength of 488 nm. (a) Calculate the frequency of the light. (b) Suppose a pulse of light f
Alex787 [66]

Answer:

A) 6.15×10^14 per sec

B)2.5 sec

Explanation:

Wavelength of light = 488 nm

speed of light = 3×10^8 m/s

therefore, frequency of light  \nu=\frac{c}{\lambda}

⇒ \nu=\frac{3\times10^8}{488\times10^{-9}}

⇒ν= 6.15×10^14 per sec

b) distance between moon and earth =  3.8×10^5 km.

= 3.8×10^8 m

light travel from earth moon and back to earth

therefore, distance traveled= 2× 3.8×10^8 m = 7.6×10^8 m

therefore time= distance/speed

⇒ time= \frac{7.6\times10^8}{3\times10^8}

= 2.5 sec

So, for a round trip time required is 2.5 sec.

5 0
3 years ago
Substance being reduced?​
lana [24]

Answer:

Ni^{2+}

Explanation:

From the equation attached , Ni^{2+} is reduced. This is because reduction is equivalent to decrease in the oxidation number. In the equation , The oxidation number of Ni is reduced from +2 to 0.

NB, The oxidation number of a neutral atom is zero

4 0
4 years ago
Methanol and ethanol are said to be miscible in one another. What does this tell you?
sasho [114]

Answer:

That they are miscible in one another

4 0
3 years ago
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