In order to form new molecules, a chemical reaction would have to occur which means the change would be a chemical change.
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>
- Russia
- Iran
- 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 :
- <em>Tight Gas</em>
- <em>Shale Gas</em>
- <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.
Answer:
T<span>he gaseous product of this reaction is water (Option-A).
Explanation:
This is a very interesting experiment. Take sugar in a beaker and add concentrated Sulfuric Acid into it. After a while an exothermic reaction will initiate with the formation of Carbon Black and Water vapors. You will observe the formation of hard and hot stem like body which is completely Black. This blackness is due to C and the water vapors will eliminate in the form of steam as the temperature has arised.</span>
The normal boiling point<span> of </span>ethanol<span> is 78.4 degrees C and, at thistemperature, </span>the vapor pressure<span> is 101325 Pascals (Pa) or 760manometric units
thx hope this helped bye.</span>
The amount ( in moles of excess reactant that is left is 0.206 moles
Explanation
FeS(s) + 2HCl (aq) → FeCl2 (s) + H2S (g)
- by use of mole ratio of FeS: HCl which is 1:2 this means that 0.223 mole of FeS reacted completely with 0.223 x 2/1 =0.446 moles 0f FeCl2.
- HCl was in excess because 0.446 moles of HCl reacted and initially there was 0.652 moles.
- Therefore the amount that was left
= 0.652- 0.446 =0.206 moles
