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What is the sourceof small molecules which are used in making synthetic polymers?
Small molecules used in making synthetic polymers are typically sourced from petrochemicals, such as ethylene and propylene, which are derived from crude oil or natural gas. These small molecules undergo polymerization reactions to form long chains of repeating units, creating synthetic polymers like polyethylene and polypropylene.
What are the 2 reasons why a decrease in temperature slows a chemical reaction?
Decreasing the temperature reduces the kinetic energy of the molecules involved. This means that fewer molecules have the activation energy required to actually react. It also means that molecules will collide less often.
What molecules were involved in making Kool-Aid?
sugar water and food coloring
How does an enzyme catalyze a reaction and what mechanisms are involved in this process?
An enzyme catalyzes a reaction by lowering the activation energy required for the reaction to occur. This allows the reaction to happen more quickly and efficiently. Enzymes achieve this by binding to the substrate molecules involved in the reaction and stabilizing the transition state, making it easier for the reaction to proceed. This process involves mechanisms such as induced fit, where the enzyme changes its shape to better fit the substrate, and active site binding, where the substrate is held in a specific orientation for the reaction to occur.
Why are molecular equations referred to as molecular even if no molecular substances are involved?
Molecular equations are named as such because they show the overall chemical reaction, including the number and type of atoms involved in the reactants and products, without considering the actual molecules. They provide a simplified representation of the chemical reaction, making it easier to understand the stoichiometry and balance of the equation, regardless of the actual molecular substances involved.
What is pseudo unimolecular reaction?
A pseudo unimolecular reaction refers to a reaction mechanism where overall kinetics mimic those of a unimolecular reaction, but involve multiple molecules coming together in a step-wise process. This can occur when a stable intermediate is formed that dictates the rate of the reaction, making it appear unimolecular even though it involves multiple reactant molecules.
What is the name of the process of making large molecules from smaller ones?
The process of making large molecules from smaller ones is called polymerization. This involves joining smaller molecules (monomers) together in a repeating pattern to form a larger molecule (polymer).
Is cracking hydrocarbon molecules an endothermic or exothermic reaction?
Cracking hydrocarbon molecules is an endothermic reaction. This process requires energy input to break the chemical bonds in larger hydrocarbon molecules, resulting in smaller molecules, such as alkanes and alkenes. The energy absorbed during cracking exceeds the energy released from the formation of the new bonds in the products, making it endothermic.
You are making a new chemical but the reaction rate is really slow if you heat the reaction will most likely?
Increase the reaction rate. Heating the reaction increases the kinetic energy of the molecules, leading to more frequent and energetic collisions, which in turn increases the reaction rate.
Before reaction of kmno4 with oxalic acid why the reaction is slow and after reaction very fast why?
Before the reaction of KMnO4 with oxalic acid, the reaction is slow because the activation energy required for the reaction to proceed is high. However, once the reaction starts and the first few molecules react to form products, the activation energy decreases significantly, making it easier for subsequent molecules to react. This results in a faster reaction rate after the initial slow phase.
Is making crisps a chemical reaction?
Making crisps involves a physical change rather than a chemical reaction. Slicing and frying potatoes causes the water in them to evaporate, which changes their texture and color, but their chemical composition remains the same.
Why does heat speed up a chemical reaction?
It provides energy to overcome the activation energy.
