Try looking at the oxidation numbers of each component and how they change in the reaction.
Oxidation of Oxygen will always stay -2 (unless it is bonded to fluorine)
The overall oxidation number of the compund/ molecule must add up to 0.
Oxy no. in reactants Oxy no. in products red/oxy
Components:
Carbon +4 +2 Reduced
Oxygen -2 -2 Unchanged
Hydrogen 0 +1 Oxidised
Therefore, since the oxidation number of the Hydroden increased, Hydrogen has been oxidised.
Answer:
compound
Explanation:
A compound is a substance that consists of atoms of two or more various elements such that the atoms are chemically joined together.
For example, water is a compound made up of hydrogen and oxygen.
A material being examined is the same throughout such that the material contains carbon and oxygen that are chemically combined. This material is compound.
Scanning electron microscope (sem): an electron beam scans the surface of a specimen (coated with gold) that excites electron from the specimen which are detected and translated into an image that is three-dimensional. It is used to study the topography of a specimen
Transmission Electron microscope (TEM):a beam of electrons is passed through a thin section of specimen that is stained with atoms or heavy metals and electromagnets acts as lenses that focus the image onto a screen or film. It is used to study the internal structure of a specimen--cells
Answer:
Experiment
Explanation:
It would be hard to develop a procedure to test the hypothesis
Answer:
The rate of flow of nitrogen into the reactor is 2,470.588 kg/h.
Explanation:
Mole percentage of nitrogen gas = 25 mole%
Mole percentage of hydrogen gas = 75 mole%
Average molecular weight of the mixture:
![(0.25\times 28 g/mol)+(0.75\times 2 g/mol)=8.5 g/mol](https://tex.z-dn.net/?f=%280.25%5Ctimes%2028%20g%2Fmol%29%2B%280.75%5Ctimes%202%20g%2Fmol%29%3D8.5%20g%2Fmol)
Rate of flow of the stream = 3000 kg/h
Mass of stream in 1 hour = 3000 kg = 3,000,000 g
Moles of stream :
![\frac{3000 g}{8.5 g/mol}=352,941.17 mol](https://tex.z-dn.net/?f=%5Cfrac%7B3000%20g%7D%7B8.5%20g%2Fmol%7D%3D352%2C941.17%20mol)
Moles of nitrogen gas in 352,941.17 moles of stream be x
![25\%=\frac{\text{Moles of nitrogen gas}}{\text{Moles of stream}}\times 100](https://tex.z-dn.net/?f=25%5C%25%3D%5Cfrac%7B%5Ctext%7BMoles%20of%20nitrogen%20gas%7D%7D%7B%5Ctext%7BMoles%20of%20stream%7D%7D%5Ctimes%20100)
![25=\frac{x}{352,941.17mol}\times 100](https://tex.z-dn.net/?f=25%3D%5Cfrac%7Bx%7D%7B352%2C941.17mol%7D%5Ctimes%20100)
x = 88,235.294 mol
Mass of 8,823,529.4 mole of nitrogen gas:
![88235.294 mol\times 28 g/mol=2.470588.2 g=2,470.588 kg](https://tex.z-dn.net/?f=88235.294%20mol%5Ctimes%2028%20g%2Fmol%3D2.470588.2%20g%3D2%2C470.588%20kg)
The rate of flow of nitrogen into the reactor is 2,470.588 kg/h.