<span>First, you can gather the number of valence electrons. Then find the number of electrons. Do that to make the atoms. Molecules make up atoms. After you need to find how many bonds are in the molecule, which molecules are made up of atoms. Then lastly you find the central atom. </span>
Answer:
How is hydrogen obtained and separated from other nearby substances?
photoelectrolysis, a photoelectrochemical cell submerged in water uses sunlight to separate the water into hydrogen and oxygen bubbles. In the thermochemical cycle, water is heated to 800 to 1,000 °C, with the molecule. splitting to release hydrogen. The main drawback of this method is that it requires nuclear power
How is Hydrogen used?
Hydrogen can be used in fuel cells to generate electricity, or power and heat. Today, hydrogen is most commonly used in petroleum refining and fertilizer production, while transportation and utilities are emerging markets
What products are made from Hydrogen?
Hydrogen is a very useful element. It is used to make ammonia for fertilizers, refining metals, and methanol for making artificial material like plastics. Hydrogen is also used as a rocket fuel where liquid hydrogen is combined with liquid oxygen to produce a powerful explosion.
Any environmental concerns about the use of Hydrogen?
Emissions of hydrogen lead to increased burdens of methane and ozone and hence to an increase in global warming. Therefore, hydrogen can be considered as an indirect greenhouse gas with the potential to increase global warming.
It was <em>(1/2) (Net force on the cart) m/s²) </em>.
The agriculture land needed to grow the willow is 1500000 Hectares
<h3>What is Power?</h3>
Power can be defined as the rate at which work is done by an object. The S.I unit of power is Watt(W).
A coal burning power station burns 6 million tonnes of coal per kg. Coal has a average energy value of 29.25 MJ per year. Wood chip from willow trees has an energy value of 13 MJ per kg. A hectare of agricultural land can produce 9 tonnes of drt willow wood per year.
The coal consumption per year = 29.25 x 1000 x 6000000
=175500000000 MJ
If this power station burned dry willow wood instead of coal, agriculture land would be needed to grow the willow,
1 hectare of willow will produce 9 x 13x 1000 = 117000 MJ.
The agriculture land needed to grow the willow is
= 175500000000 MJ / 117000 MJ.
= 1500000 Hectares.
Thus, agriculture land needed is 1500000 Hectares.
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