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During a Breathalyzer test, the chemical reaction that occurs is the oxidation of ethanol (alcohol) in the breath. The device typically uses an oxidizing agent, such as potassium dichromate, which reacts with the ethanol to produce acetic acid and chromium ions. This reaction changes the color of the solution, and the extent of the color change is proportional to the concentration of alcohol in the breath, allowing for the determination of blood alcohol content.
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Does a sugar dissolving in water is a physical property?
Yes it is because no chemical reaction occurs during it so it is not chemical.
What type of chemical reaction occurs when a disposable lighter is used?
What is the chemical reaction of a dispoiable lighter
What phrase best describes a exothermic chemical reaction?
A chemical change that gives off heat. Burning paper would be an example.
How does a breathalyzer examines the breath exhaled?
A breathalyzer examines exhaled breath by measuring the concentration of alcohol vapor present. When a person blows into the device, the breath is drawn into a sensing chamber, where a chemical reaction occurs, typically involving a catalyst like platinum. This reaction produces an electrical current that correlates to the amount of alcohol in the breath, allowing the device to estimate blood alcohol concentration (BAC). The results are then displayed digitally for analysis.
When a chemical reaction occurs the compounds remain the same as before the reaction?
During a chemical reaction, the atoms are rearranged to form new compounds. The original compounds are broken apart and recombined in different ways to produce new substances with different properties.
Does a sugar dissolving in water is a physical property?
Yes it is because no chemical reaction occurs during it so it is not chemical.
What is a Chemical light?
You are probably thinking of chemiluminescence. This occurs during a chemical reaction when light is emitted. Search luminol.
Is transfer of typewriter ribbon onto paper a physical or chemical change?
That is a physical change. No chemical reaction occurs during this process.
A blank is a solid formed from liquid reactants during a chemical reaction?
A solid formed from liquid reactants during a chemical reaction is called a precipitate. This occurs when two soluble reactants mix and a solid compound is formed that is insoluble in the reaction medium.
When a chemical reaction occurs atoms are never?
When a chemical reaction occurs atoms get ionized. Atoms are never created nor destroyed in a chemical reaction.
Where is the energy which is released during a chemical reaction stored to begin with?
The energy released during a chemical reaction is stored in the chemical bonds of the reactant molecules before the reaction occurs. During the reaction, these bonds are broken, and new bonds are formed, releasing the stored energy in the process.
What type of chemical reaction occurs when a disposable lighter is used?
What is the chemical reaction of a dispoiable lighter
What is the best definition of the enthalpy of a reaction?
The enthalpy of a reaction is the heat change that occurs during a chemical reaction at constant pressure. It represents the difference in energy between the products and reactants in the reaction.
What type of change occurs in a chemical reaction?
In a chemical reaction, a chemical change occurs where the chemical composition of the substances involved is altered, leading to the formation of new substances with different properties. This change involves the breaking and forming of chemical bonds.
What phrase best describes a exothermic chemical reaction?
A chemical change that gives off heat. Burning paper would be an example.
What chemical reaction occurs in the choloroplast?
Photosynthesis.
What is a chemical reaction occurs?
a nail rusts
