The general chemical equation for a synthesis reaction is A + B ..
My hypothesis that the combination of steel wool and vinegar will generate heat was proven correct.
The data shows that the temperature increased when you combine steel wool and vinegar.
example of a synthesis reaction
DO NOT look directly at the burningmagnesium. Be careful not to let the burning magnesium come in contactwith the sides of the glass bottle. When the reaction stops, drop thesteel wool into the distilled water, cover the bottle, and shake it vigorously.
Leveling Acid Dyes work best out of all of the acid dye classes for dyeing very even solid colors, and the colors are very bright. The molecules are simple and small and migrate fastest through the dye bath or the fiber, which is why they dye so evenly. They have a few drawbacks, not the least of which is that they are often not as wash fast as the other types of acid dye, so they should be washed in cool water or dry cleaned. (That is good practice with dyed silk and wool anyway!) Products such as our Dharma Dye Fixative or Retayne in a hot soak can improve their washfastness. Even though they sometimes have washfastness levels of 4-5 on a scale of 1-5, they are tested for washfastness at much cooler temperatures than something like Fiber Reactive Procion type dyes, and they will bleed in hot water. These require the most acidic dyebath of the three types, but as you can see from the chart below, if you work from a standard set of directions and your ph runs around 4, all three classes of acid dyes will work. Some folks recommend the addition of Glaubers Salt as a leveling agent with these Leveling Acid Dyes, though this is the only class of acid dyes that Glaubers Salt would work with. It actually does the opposite with Milling and Premetalized Dyes, which work better with Ammonium Sulfate. This leveling class of dyes often doesn't yield the same shades or strength on silk as wools, or even on different types of wool, so mixes can skew on silk vs. wool. Best to never dye different fibers in the same dye pot, as the wool will suck up the dye and leave little for the silk.
steel wool (HEB, Target, Lowe’s, Home Depot) ..
In this research, SnO2 and Fe3O4 composite thin film were grown on glass slides by using commercial microwave oven. The obtained samples were characterized using X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), Energy Dispersive X-ray Spectroscopy (EDX), Ultraviolet-Visible Spectroscopy (UV-Vis) and Photoluminescence (PL). The growth of SnO2 was carried out for the periods of 60 s, 50 s and 40 s with two 5-second time intervals. XRD pattern shows the presence of two phases: SnO2 and Fe3O4 in all samples of grown composites. It was found that the sample grown for 60 s having dominant SnO2 phase while for the durations of 40 s and 50 s, the phase of Fe3O4 are more dominant. The Fe3O4's phases are believed originated from chemical reaction involving the steel wool which was used to stimulate the oxidation of Sn into SnO2. SEM observations reveal heavily agglomerated spherical-like particles which size ranges from 80.6 nm to 113.6 nm. EDX analysis indicates that composites with the growth time of 60 s contain the highest weight percentage (13.52%) of Sn, followed by those composites with the growth time of 50 s (5.47%) and 40 s (4.31%). UV-Vis spectroscopy shows the optical band gap energy for the 60-second growth time's composite, is 3.9 eV, which is well-correlated with the value of bulk of SnO2.PL characterization shows that the peaks of the curve fall within the range between 490 nm and 900 nm. The presence of oxygen defects probably causes the deterioration of optical bandwidth.
What is the chemical reaction equation for steel wool …
They are widely used as solvent of both extraction and reaction as well as intermediates for the synthesis of textile chemicals and pharmaceuticals and agrochemicals.
Combustion reaction Experiment 1 – Steel Wool ..
As for the power source, I used a power supply from an old computer, which was modified in order to give an alternating current of the desired value of electric current. For the formation of one mole of chlorate ions, six moles of electrons are needed. The total charge of one mole of electrons, i.e. the Avogadro's number of electrons is equal to one farad (which is equal to 96485.3415 coulombs). Since 1 Ah = 3600 C, and by taking into account the fact that 6 moles of electrons are needed, I calculated that for the synthesis of one mole of sodium chlorate, 160.8 Ah are needed. Since the cells are in a series circuit, and by using the electric current of 3 A, I calculated that the time needed to convert one mole of NaCl to one mol of NaClO3 equals 26.8 hours. In each electrolytic cell there was 500 mL of the saturated NaCl solution, so in total, I was dealing with about 350 grams of NaCl, i.e. about 5.9 moles. Finally, the conclusion is that the reaction should be in progress for 158.12 hours in order to convert all the NaCl into NaClO3. As for the voltage, around 3 volts are needed for the oxidation of the chloride to the chlorate ion (and for the reduction of hydrogen on the cathode), but I used a bit higher voltage (9 V) because of the electrical resistance of the cells themselves.