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Would it be a chemical change if Blueberry juice is squeezed over a white shirt to dye it blue is this a chemical change or physical change?
The shirt is white because something is making it white and that something could have reacted with the blueberry juice. It depends on the juice and the material the shirt is made of. If the Juice can be squeezed out or removed with enough rinsing or washing, it may be just a physical change. Otherwise, the dye in the juice may have chemically bonded with something in the shirt material and may need a chemical substance such as a bleaching agent to neutralize it.
Is juice freezing a chemical change?
No, it is only a physical change since the chemical properties of alcohol do not change.
Is juicing a lemon a chemical change?
Juicing a lemon is a physical change because the lemon's molecules remain the same even though its physical form changes from solid to liquid. The process of juicing just separates the juice from the pulp without altering the chemical composition of the lemon.
How does the pH of juice change with time How does temperature affect the rate of chemical changes?
The pH of juice can change over time due to chemical reactions such as oxidation and fermentation. Higher temperatures generally increase the rate of chemical reactions, so temperature can affect the rate at which the pH of juice changes. Higher temperatures can lead to faster degradation of components in juice, which can impact its pH.
Why do ginger pieces turn pinkish when they are sprinkled with lemon juice?
This color change occurs due to a chemical reaction between the ginger's compounds (anthocyanins) and the acidic lemon juice. The anthocyanins in the ginger react with the acid to change color, resulting in the pinkish hue.
