Answer:
3.5 moles of NO2.
Explanation:
The balanced equation for the reaction is given below:
3NO2 + H2O —> NO + 2HNO3
Next, we shall determine the excess reactant. This is illustrated below:
From the balanced equation above,
3 moles of NO2 reacted with 1 moles H2O.
Therefore, 6.5 moles of NO2 will react with = (6.5 x 1)/3 = 2.17 moles of H2O.
From the above calculations, we can see that it will take a higher amount i.e 2.17 moles than what was given i.e 1 mole of H2O to react completely with 6.5 moles of NO2.
Therefore, NO2 is the excess reactant and H2O is the limiting reactant.
Next, we shall determine the number of mole of the excess reactant that reacted in the reaction. This is illustrated below:
From the balanced equation above, we can see that 3 moles of NO2 reacted with 1 mole of H2O.
Finally, we shall determine the leftover mole of the excess reactant after the reaction. This is illustrated below:
Given mole of NO2 = 6.5 moles
Reacted mole of NO2 = 3 moles
Leftover mole of NO2 =...?
Leftover mole = Given mole – Reacted mole
Leftover mole of NO2 = 6.5 – 3
Leftover mole of NO2 = 3.5 moles.
Therefore, 3.5 moles of NO2 remained after the reaction.
Nitrogen can also bond with otherthree atoms because of its outer shell (valence shell) that has three electrons.This is the reason why organic molecules can be so large because of thisbonding. Suppose you have a compound of NH3. You know that hydrogen can onlyshare 1 electron because 7 of its electrons are filled. Also, in nitrogen, it canonly share 3 electrons because 5 of it are already filled. That is why nitrogenneeds three hydrogen to form NH3.
Explanation:
Percentage composition tells you the percentage of each element present in a compound or molecule. This allows you to work out the number of atoms of each element present in the molecule. Percent composition is important because it allows us to determine the percentage of each element that makes up a specific compound. Percent composition is important because it allows us to determine the percentage of each element that makes up a specific compound.
Answer:
It tells you what the substance is made of.
Explanation:
Answer:
Option(b)
Finding new sources of fresh water is not the correct method For solving the world water crisis the solution
Explanation:
Very small amount of water available on earth is freshwater and can be used by humans for drinking and other basicnecessities. Finding a new source for fresh water is a difficult also there is an no source found yet according to physical geography of the earth
Water consumption is need of the hour as the population of 7 billion can not survive without it and reducing over consumption can help savehugeamounts of water.
Answer:
The correct answer is option b. finding new sources of water
Explanation:
The other options are more proactive ways of alleviating the crisis, while finding new sources of freshwater is hardly an option. That would likely involve melting the glaciers to extract the Earth's largest fresh water reserves, which would subsequently destroy polar ecosystems and alter the thermohaline circulation of water across the globe, which relies heavily on the Earth's polar regions and has a large effect on the planet's climate.
did she just undertake?
A. Make a plan
B. Know the background.
C. Identify a need.
D. Test and evaluate.
Answer: identify a need
Explanation:
The engineer has executed the 'Identify a need' step in the engineering process, acknowledging a problem that could be improved with engineering - in this case, sound pollution from highway traffic.
The engineer in the scenario has just carried out the 'Identify a need' step in the engineering process. This step entails the recognition of a problem or the identification of a situation that could potentially be improved via engineering. In this case, the need is for a technological solution to mitigate sound pollution caused by highway traffic noise. This solution could drastically improve many people's quality of life, particularly those living near busy highways. The next steps in the process would be researching and brainstorming potential solutions, developing a blueprint or plan for the chosen solution, and then testing and evaluating the efficacy of the implemented solution against the identified need.
#SPJ2
B.) Change in concentration of reactant
C.) Temperature
D.) Particle size
The variables which can affect the speed of a chemical reaction are inihibitor, concentration, temperature and particle size.
Speed of any reaction also known as rate of reaction and it gives idea about the duration that at how much time it will complete.
Hence all of the above will changes the speed of the reaction.
To know more about speed of reaction, visit the below link:
Your answer is B(I'm not very much sure about this one), C, and D.
I hope very much that I am correct, hope this helps you.
~Onyx~