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Andrew [12]
3 years ago
13

What negative impact did chemistry have on society through the production and use of chlorofluorocarbons (cfcs)?

Chemistry
2 answers:
postnew [5]3 years ago
7 0
The negative  impact of chemistry have on society through the production and use of chlorofluorocarbons (CFCs) is that lower levels of ozone allowed more ultraviolet radiation to reach Earth. CFC is an organic compound which is used refrigerants, propellants and solvents. 
stira [4]3 years ago
5 0

Answer:

The CFCs leads to lower levels of ozone in the stratosphere, which had permitted more ultraviolet radiation to reach the surface of the Earth.

Explanation:

The CFCs or chlorofluorocarbons refers to an array of compounds that comprise the elements fluorine, chlorine, and carbon. The CFCs does not have any direct influence on the environment in the instantaneous vicinity of their discharge. However, on a global scale, the discharging of CFCs exhibits some serious environmental outcomes.  

Their presence in the atmosphere signifies that some reach to the stratosphere and destroy the layer of ozone, thus minimizing the safeguarding it provides the Earth from the harmful UV rays of the Sun. It also contributes to Global Warming.  

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Give the chemical symbol of an element in the third period (row) of the periodic table with four 3p electrons.
Ann [662]

<u>Answer: </u>The chemical symbol of the element is Sulfur.

<u>Explanation:</u>

The element which is present in third period of the periodic table having four 3p electrons is Sulfur. Sulfur is the 16th element of the periodic table which has 6 valance electrons.

The electronic configuration of this element is:  [Ne]3s^23p^4

This element is considered as a non-metal because it will accept electrons in order to attain stable electronic configuration.

Hence, the chemical symbol of the element is Sulfur.

7 0
3 years ago
When a nonmetal oxide reacts with water, it forms an oxoacid with the same oxidation number as the nonmetal. Give the name and f
vaieri [72.5K]

Addition of chlorine to water gives both hydrochloric acid (HCl) and hypochlorous acid (HClO)

What are Transition metal oxides ?

Transition metal oxides (TMOs) are another class of nanomaterials, frequently used as anode in alkaline batteries due to their distinctive properties such as abundant active sites, short diffusion pathways, low preparation cost, high theoretical capacity and distinct reaction mechanism.

Cl2 + H2O ⇌ HClO + HCl

Cl2 + 4 OH− ⇌ 2 ClO− + 2 H2O + 2 e−

Cl2 + 2 e− ⇌ 2 Cl−

The acid can also be prepared by dissolving dichlorine monoxide in water; under standard aqueous conditions, anhydrous hypochlorous acid is currently impossible to prepare due to the readily reversible equilibrium between it and its anhydride.

2 HClO ⇌ Cl2O + H2O      K (at 0 °C) = 3.55×10−3 dm3 mol−1

The presence of light or transition metal oxides of copper, nickel, or cobalt accelerates the exothermic decomposition into hydrochloric acid and oxygen

2 Cl2 + 2 H2O → 4 HCl + O2

To learn more about exothermic decomposition click on the link below:

brainly.com/question/20089404

#SPJ4

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