The human body is known for its large number of biochemical reactions. According to a source on this website, an average of thirty seven sextillion (37*10^12) chemical reactions occur in the body every second.
Researchers have found a way to show chemical reactions in real time. The scientists used computer simulations with LCLS. LCLS is a linear accelerator that creates X-ray pulses to take pictures of chemical reactions. In the experiment they looked at a catalyst ruthenium and carbon monoxide. Catalysts make the chemical reaction process more efficient and effective. First the ruthenium and the carbon monoxide bonded. Then, the X rays from the LCLS captures what is happening. Lastly, they discovered the carbon monoxide took longer to break apart then expected
This article talks about how the chemical reactions formed in fireworks produce sound and vibrant colors. To begin with when a fuse on a firecracker is lit, it sets off a chemical reaction. When the burning chemical reaction releases gas in a firework, the cardboard shell of the firework explodes, producing a powerful popping sound. Colors in fireworks are created when various chemical elements are mixed in with the gunpowder. For example chemical compounds containing elements such as lithium or strontium will produce a red color when burned. Sodium will emit a strong yellow color while copper will create a dark blue color. To be able to produce a white color, chemicals such as aluminum and magnesium must burn together at a very high temperature. Fireworks are also capable of producing colors that are mixtures of other colors. For example if chemicals that produce the colors red and yellow are combined, the fireworks will emit an orange color.
The Maye Research Group in the Department of Chemistry at Syracuse University have come up with a way to monitor chemical reactions using colour. The designed a nanomaterial that changes colour when it interacts with things during a chemical reaction. This allows researches to study reactions easier without extensive analysis. Perovskites, a class of nanomaterials, were very useful in the group's work. Perovskites emit light at a nanoscale which made them great in this innovation.
This article is about the increase of tooth decay after stopping to add fluoride to drinking water in 2011. The health unit is also hoping to have fluoride added back to the water but no plans have been made yet. The fluoride in the water helps to keep your teeth strong and help smaller teeth grow. But not all citizens agree with this idea, many still think the fluoride is poisonous. Dentists have looked at the records and have evidence of this problem and are ready to be presented to the goverment.
This article talks about how fireworks work. Wow, that was oddly satisfying to say.........anyways, all fireworks have 2 essential ingredients. A chemical that's rich in oxygen and a chemical to serve as the fuel. The oxygen rich chemical you use determines which colour the firework will be and the fuel chemical determines how long the firework will fly before exploding into the bright sparkles that we've all learned to love. Thought this was pretty cool as I used to think it was always 1 chemical and that they used dye or something like that to change the colours.
This article describes a reaction called the Maillard reaction that occurs usually whenever we fry, bake, grill, or roast something. It is responsible for many characteristics of food, from the brownish colour we see on toast, to the "toasted" smell that can be detected from nuts, beans, and bread.
The Maillard reaction occurs between amine groups of amino acids or proteins and reducing sugars such as glucose and fructose, and is most rapid in low-moisture environments. However, a potentially dangerous byproduct of Maillard reactions is acrylamide, which is a possible carcinogen.
This interview talks about early earth. It talks about how metabolism in biochemistry is the conversion of nutrients to the molecules the cell needs. They think that there was one origin of metabolism. Metabolism had thousands of chemical reactions that produced more metabolites and made enzymes. These chemical reactions formed the early earth according to this interview.
Using a computer program, NASA scientists believe that a chemical reaction could be used to make water on the Moon. They found that when Solar Wind hits the Lunar surface, hydrogen atoms are created.These atoms can bond with the oxygen atoms found in the oxygen-bearing molecules found in lunar soil. Together, they make hydroxyl which is a component of water. This shows that every rock on the Lunar surface has the potential to become water.
Although very humorous, the cartoon on the left is very relatable. Recently, in Careers, we learned of a type of learners called Kinesthetic learners. These learners like to try everything and enjoy hands on environments. When it comes to labs, every detail in the instructions is very important, and skipping a step can result in major accidents. In these kinds of situations, it is important to listen to the teacher and follow instructions carefully to ensure everyone’s safety.
Scientists at NASA are exploring how solar wind affects the moon's surface and how this may create a key ingredient of water.
The NASA scientists have shown via computer simulation, chemical reactions on the moon’s surface. The moon gets a boost from charged plasma particles streaming off the sun, and therefore has the potential to make water. Solar wind breaks apart oxygen-rich compounds in the lunar soil. Positively charged protons within the solar wind combine with lunar electrons to create hydrogen atoms. Those atoms then meet up with oxygen atoms available in a range of different molecules found on the moon to create hydroxyl, which is just one hydrogen atom short of water.
To full research paper is available on this link: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018JE005805
We all know of the Coke and Mentos geysers, and the reaction that occurs is pretty cool. Instead of being a chemical reaction – which many people assume due to the explosion – the Coke and Mentos actually create a physical reaction called nucleation.
The surface of a Mentos has many microscopic bumps know as nucleation sites, which are places that gases can hold onto to form bubbles. This creates all the foam that shoots out of the bottle. So, instead of creating a new substance and going through a chemical reaction, we just have a disguised physical reaction.
An explosive incident involving chemical reactions took place on June 27 2015 when an amusement park in Taiwan was holding a “Color Play Asia” party. A coloured powder (corn starch based - flammable) thrown in the air exploded with the high heat and resulted in the death of 15 people and more than 500 injuries.
This article focuses on the recent advancements of rechargeable car batteries for electric vehicles, and how through the process of electrochemistry scientists have adapted the technique of creation. With possible advancements to manufacturing modern medicine, this new method involves a certain type of chemical reaction known as dissolving metal reduction, a safer, cheaper way to make compounds used in machines.
This video demonstrates the creation of elephant’s toothpaste, the product of the reaction between hydrogen peroxide and potassium iodide. Potassium iodide, sometimes replaced by the catalase in yeast, is used as a catalyst to speed up the process of the decomposition of hydrogen peroxide and thus creates a rapid generation of oxygen gas and water. With the liquid soap that were mixed into hydrogen peroxide at the beginning, the water and soap create a barrier to trap the oxygen gas, hence creating the impressive bubbly foam that you can see in this video. The reaction is also exothermic because it exerts heat energy.