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Is turning a penny gold a chemical or physical reaction?
Turning a penny gold is a physical reaction rather than a chemical reaction. This process involves coating the penny with a layer of gold, which changes its appearance but does not alter the chemical composition of the penny itself.
What is a flower petal turning brown a physical or chemical change?
A flower petal turning brown is a chemical change. This is because the process involves a chemical reaction that alters the composition of the pigment in the petal, causing it to change color.
Is a piece of avocado turning brown a chemical change or a physical change?
The browning of an avocado is a chemical change. This process, known as oxidation, occurs when enzymes in the avocado interact with oxygen in the air, causing a change in the chemical composition of the fruit.
Is milk turning sour a physical change?
No, milk turning sour is a chemical change because the bacteria in the milk interact with the lactose to produce lactic acid, changing the composition of the milk.
Do the bubbles in a pot of boiling water for noodles indicate chemical change?
No, the bubbles in boiling water for noodles do not indicate a chemical change. The bubbles are formed due to the physical process of water reaching its boiling point and turning into steam bubbles. This is a physical change, as only the state of the water molecules is changing, not their chemical composition.
Dry ice turning into carbon dioxide physical or chemical?
i think it is chemical but it may be physical.
Is bannan turning rotten a chemical or physical change?
This is a chemical change.
Is turning of copper into green when exposed into environment physical or chemical change?
It is a chemical change.
Is an apple turning brown a physical or chemical?
An apple turning brown is both a chemical and a physical change. Physically it changes appearance by turning brown. Chemically it oxidizes when the air comes in contact with the enzymes and chemicals in the fruit.
Is turning cloudy a chemical change?
A solution turning cloudy is evidence of a chemical change.
Cucumber turning into a pickle chemical or physical change?
A little of both...
Is turning on your fireplace a physical change?
Burning of fuels is a chemical process.
Is turning an egg into a pancake a chemical or a physical reaction?
chemical -you cant turn the pancake back into an egg :)
Would something turning hot to cold be a chemical change?
A decrease in temperature is a physical change, not chemical.
Are eyes turning red due to a lack of sleep a physical or chemical change?
it's a physical irritation.
Is fresh milk turning sour a physical property?
No, it's a chemical property
Is turning brownie mix into brownie a physical change or a physical change?
Turning a brownie mix into brownies is a chemical change. When the ingredients are heated in the over, numerous chemical reactions take place. Because new substances are created in the process, the process is a chemical change.
