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Anna11 [10]
3 years ago
11

Examine the Lewis structure.

Chemistry
2 answers:
xz_007 [3.2K]3 years ago
8 0

Answer:

The middle hydrogen is bonded to 2

elements.

Each hydrogen must be bonded to one element which is oxygen

valina [46]3 years ago
6 0

Answer:

A, C, & D on edge!

Explanation:

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A molocule i think sorry if im wrong


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What is the chemical formula for Copper (II) nitrate?
Nat2105 [25]

Answer:

The answer to your question is  Cu(NO₃)₂

Explanation:

To write the chemical formula of a molecule:

1.- Look for the symbols of the elements

Copper = Cu        has an oxidation number of +2.

Nitrate = NO₃⁻¹    nitrate is a polyatomic ion so it is composed of nitrogen,

                            oxygen and its oxidation number is -1.

2.- Write the chemical formula and interchange the oxidation numbers.

             Cu⁺² + NO₃⁻¹   ⇒   Cu(NO₃)₂

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What type of relationship exists between birds and trees
shutvik [7]

Answer:

Brids and nests???????

Explanation:

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When the water inside a living cell freezes, the ice crystals damage the cell. The wood frog is a unique creature that can survi
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Define natural gas, liquefied petroleum gas (LPG), and liquefied natural gas (LNG). What three countries have most of the world’
mrs_skeptik [129]

Answer:

The answer is treated below.

Explanation:

<u>Natural gas</u>: Natural gas is not used in its pure form; it is processed and converted into cleaner fuel for consumption. It is a fossil fuel composed almost entirely of methane, but contain small amounts of other gases, including ethane, propane, pentane and butane. It is a combustible,  gaseous mixture of simple hydrocarbon compounds, usually found in deep  underground reservoirs formed by porous rock. Natural gas is mainly used as fuel for generating  heat  and electricity.

<u>Liquefied petroleum gas (LPG)</u>: Liquefied Petroleum Gas is a byproduct of natural gas and oil extraction and crude oil refining . At room temperature,  liquefied petroleum gas is a colourless and odourless gas which consists generally of butane (C4H10) or propane (C3H8) or a mixture of both.

<u>Liquefied natural gas (LNG)</u>: Is natural gas that has been liquefied for ease of transport or storage. It is refrigerated to a very low temperature (-162 Celsius). At this temperature it becomes an odourless, non-toxic liquid that can be safely transported over long distances.

<u><em> Three countries that have most of the world’s natural gas reserves</em></u>

  1. Russia
  2. Iran
  3. Qatar

<em>Major advantages of using conventional natural gas as an energy resource:</em>

  • It is less expensive when compared to other fossil fuels.
  • It is safer and easier to store when compared to other fossil fuels

<em>Major disadvantages of using conventional natural gas as an energy resource:</em>

  • It costs more to recover the remaining natural gas because of flow, access, etc.
  • It is not a renewable source.
  • it is a combustible material, It must be handled with care.
  • It does not contribute to greenhouse gases.

Three sources of unconventional natural gas :

  1. <em>Tight Gas</em>
  2. <em>Shale Gas</em>
  3. <em>Coalbed Methane</em>

<u>Major problems related to the use of </u><u>Tight Gas</u>

  • When Hydrofluoric acid is used to release tight gas in reserves it potentially an issue simply because the substance is so dangerous. A spill or a leak could harm workers and pollute groundwater for uses.

<u>Major problems related to the use of </u><u>Shale Gas</u>

  • Risk of ground and surface water contamination.
  • Have impacts on air quality.

<u>Major problems related to the use of </u><u>Coalbed Methane</u>

  • The development of coalbed methane will result to soil disturbance from construction of wells, roads, and the associated pipeline and electric power rights-of-ways.
  • It has impact on wildlife.
8 0
3 years ago
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