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Catalysts and Catalysis
Catalysts are compounds or elements which take part in a reaction without getting used up themselves.
950 Questions
Is a piece of metal is bent in half a chemical change?
It is a physical change because only its shape changed, not its chemical composition.
What is equation including catalyst for the hydration of 1-methylcyclobutene?
The equation, including the catalyst for the hydration of 1-methylcyclobutene is: C5H8 + H2O + HX ---> C5H8OH + H2O.
How can you seal Poly-urethane and acrylic material?
This could be taken a lot of different ways, but I'm going to approach this like so: You have a container made from polyurethane and a container made from acrylic, and they leak.
How you approach this depends on what is going in the container. If the container is not going to hold something like live fish or drinking water, I would use a polyurethane sealant like Sika Construction Sealant.
On a container used for an aquarium or a drinking water tank, I would use aquarium sealer, which is a non toxic silicone.
Why does a catalyst not need to be replaced?
A catalyst speeds up a chemical reaction without being consumed in the process. It provides an alternative pathway with lower activation energy, allowing the reaction to occur more easily. Since it doesn't undergo a permanent change, a catalyst does not need to be replaced and can be used multiple times.
What is the best electrolyte in water?
The best electrolytes to add to water include sodium, potassium, magnesium, and calcium. These electrolytes help replenish the body's electrolyte balance and support hydration during physical activity or sweating. Products like sports drinks or electrolyte tablets can be used to easily add these electrolytes to water.
What is the characteristic feature of an endothermic reaction?
An exothermic organism is cold- blooded and it's body temperature shifts depending upon the temperature of it's surrounding environment, for example a fish. An endothermic organism is a warmblooded organism that maintains a certain temperature inside the body no madder what its surrounding environments temperature is, for example humans.
What is oxidized in mno2 plus 4hcl equals mncl2 plus cl2 plus 2h2o?
In the reaction MnO2 + 4HCl -> MnCl2 + Cl2 + 2H2O, manganese in MnO2 is getting oxidized from +4 to +2 (in MnCl2). Chloride ions in HCl are being reduced to chlorine gas (Cl2).
How you remove hard sticky label from glass bottle?
One way to get it out is to brace the bottle or have a buddy hold it. Throw two or three loops of cotton string around the neck of the bottle (a shoe lace works well). Holding the ends of the string tight, with a sawing motion, pull the string back and forth.
After about 3 to 4 minutes of this, the friction of the string will have heated the neck of the bottle, causing it to expand and release the (colder) stopper. Before you put the stopper back into the bottle, grease it lightly with stopper grease or petroleum jelly. Don't put a cold stopper into a hot bottle.
DO NOT USE ANY OTHER METHOD to heat the neck of the bottle. The heat of an open flame, for instance, cannot be controlled and it may cause the bottle to explode or crack.
A (quicker) variation is to wet a cloth with water from the hot tap (about as hot as you can stand when you wring it out - but no hotter), and wrap it round the neck of the bottle or decanter.
enzymes are made up of protein. amino acids are a type of protein, but if ever asked
a question on what they are made up of, the simple answer of :protein, will be
appropriate. enzymes are what speed up the chemical reactions in our body, if we
did not have enzymes the chemical reactions would take a lot longer to take place
and could effect our body functions as the chemical reactions are not happening as
they are suppose to.
How do you make your copper roof green?
Copper roofs turn green over time due to a natural process called patina formation. This occurs when the copper oxidizes and reacts with the environment. To speed up the process, you can apply a patina solution or let nature take its course over several years.
What is the name of the enzyme that activates another enzyme?
The enzyme that activates another enzyme is called a kinase. Kinases add phosphate groups to proteins, a process known as phosphorylation, which can activate or deactivate the target enzyme.
What do you mean by promoter in chemical equation?
A promoter in a chemical reaction is a substance that increases the rate of a reaction without being consumed in the process. It works by providing an alternative reaction pathway with lower activation energy, allowing the reaction to occur more rapidly. Promoters are often used in industrial processes to enhance the efficiency of reactions.
How quickly are catalysts consumed in a reaction?
Catalysts are never consumed in the reaction. that's what makes them catalyst! not a reactant. they increase the rate of reaction by lowering the activation energy for the reaction. One of the ways to do this by providing an alternative route for the reaction to follow.
What does catalyst do for biodiesel?
A catalyst is used in the transesterification process to speed up the reaction between vegetable oils or animal fats and alcohol, which produces biodiesel. The catalyst helps promote the conversion of triglycerides into fatty acid methyl esters, the main components of biodiesel. Commonly used catalysts include sodium hydroxide (NaOH) and potassium hydroxide (KOH).
Why would companies spend money to try to find catalysts that make reactions go faster?
Companies may invest in finding catalysts to make reactions go faster in order to increase efficiency, reduce production costs, save time, and improve overall productivity. Faster reactions can lead to higher throughput and increased yields, providing a competitive advantage in the market. Additionally, using catalysts can help companies meet regulatory requirements and environmental standards by reducing the amount of energy or resources needed for the reaction.
What is a macromolecule catalyst called?
Biochemical macromolecular 'catalysts' are known as Enzymes. Each one is Throughly Specific in its chemical job(s).
No, lipids are not catalysts. They are organic compounds that serve as energy storage, structural components of cell membranes, and signaling molecules in living organisms. Catalysts are substances that increase the rate of a chemical reaction without being consumed in the process.
What limits the amount of synthetic ethanol produced?
The availability and cost of feedstock (such as corn or sugar cane) needed for ethanol production, as well as the efficiency of the conversion process, can limit the amount of synthetic ethanol produced. Additionally, factors like government regulations, market demand, and competition with fossil fuels can also impact the production of synthetic ethanol.
RNA molecules that act as enzymes are called ribozymes(also called RNA enzymes or catalytic RNA).
They have a well defined tertiary structure (like proteins), their activity is often coordinated to metal ions as cofactors, and they have been found to catalyze reactions in which a ribosome removes the amino group from an amino acid.
What diseases are enzymes used to test for in diagnostic kits?
Enzymes are commonly used in diagnostic kits to test for diseases such as heart attacks (troponin), liver disease (AST, ALT), pancreatic disorders (amylase, lipase), and certain cancers (PSA, CA-125). These enzymes are measured in the blood to help diagnose and monitor the progression of these conditions.
Enzyme affinity refers to the strength of binding between an enzyme and its substrate. It determines how readily an enzyme can bind to its substrate and catalyze a reaction. Enzymes with high affinity have a strong binding interaction with their substrates, leading to efficient catalysis.
What are ''thermolabile enzymes''?
Thermolabile enzymes are enzymes that are sensitive to heat and can be denatured or destroyed at high temperatures. These enzymes have optimal activity at lower temperatures and are typically found in organisms living in moderate environments. Heating can disrupt the structure of thermolabile enzymes, rendering them nonfunctional.
Potassium permanganate is colored because it absorbs light in the visible range of the electromagnetic spectrum. The permanganate ion is the source of the color, as a ligand-to-metal charge transfer takes place between the oxygen's p orbitals and the empty d-orbitals on the metal. This charge transfer takes place when a photon of light is absorbed, which leads to the purple color of the compound.
In the enzyme reaction conical tube, you would likely observe a faster rate of reaction and a decrease in substrate concentration over time as the enzyme catalyzes the reaction. In the control reaction conical tube, you would not see significant changes in substrate concentration or reaction rate since there is no enzyme present to facilitate the reaction.
What is the difference between biological and non-biological catalysts?
the basic difference between a inoganic catalyst and a biological catalyst is the origin name living compound and non-living compound.
Explaination Living compound are the compund produced by living organism like spirogara, virus, bateria, protozoa, yeast ect. The compound which is secerated by the above organism. Yes they are chemical at the bottom level they can be called bio-organic compound, enzymes, hormons, venoms ect in the different sector of medicine, dyes
Inorganic catalyst are the non living compunds there are not produced by any organism but they are prepared in the lab with the chemical reaction. They are use to improve the rate of reaction not by taking part in reaction or take part in the reaction but comes out at the orginal form at the end of the reaction.
