What is the chemical reaction with hair dye?

What is the chemical reaction with hair dye? The most common cause of these allergic reactions is para-phenylenediamine, also called PPD. PPD is found in most commercially produced hair dyes. The PPD is usually mixed with peroxide in the dye to alter the hair color. Is hair dye flammable? HYDROGEN PEROXIDE. Domestic products containing hydrogen […]

How does a thermochromic thermometer?

How does a thermochromic thermometer? Thermochromic inks or dyes are temperature sensitive compounds that temporarily change colour with exposure to heat. This produces an aqueous slurry or concentrate which changes from colour to colourless as the temperature rises , and with decreasing temperature the colour returns. … What are color changing thermometers? The liquid crystal […]

Can you reach for a first down?

Can you reach for a first down? To obtain a first down in football, the offense must gain 10 total yards towards the opposing end zone. If the offense does not obtain the 10 yards needed for a first down on the first play, it becomes second down. However, if they lose two yards on […]

Can a 32 long Revolver shoot 32 short?

Can a 32 long Revolver shoot 32 short? 32 S&W Long chambered revolvers cannot reliably set off the . 32 S&W, due to the thinner rim. The difference in rim thickness and body diameter are the reason . 32 S&W (“Short”) is not considered a safe cartridge to shoot in firearms chambered for any of […]

What does Dante learn from Francesca?

What does Dante learn from Francesca? Dante learns that these are the spirits doomed by carnal lust. He asks the names of some that are blown past, and Virgil answers with their names and some knowledge of their stories. Calling Francesca by name, he asks her to explain how she and her lover were lured […]

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