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What does not signal a chemical change color change or production of light and heat or production of gas or change in state?
Wiki User
∙ 13y ago
color change
Wiki User
∙ 13y ago
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Do bubbles appear when a chemical change is happening?
Yes. They can. The clues of a chemical reaction are production of a gas, change in temperature, color change, production of a precipitate. If you take either baking soda or baking powder, and you add them to vinegar they both form bubbles in a chemical reaction.
Five evidences of chemical change?
A gas is produced when a chemical change takes place. The temperature changes and a substance disappears. A solid is formed and a color change has occurred. Another chemical change is that a new odor is produced.
How can you be sure that at least one chemical change has occurred?
Evidence that a chemical reaction has taken place usually include appearance of a precipitate, change in color, or production of a gas.
Is drying leaves a chemical change or a physical change?
Drying of leaves is a physical change because neither it changes its composition nor does it have any different properties from the original one.
When could color change be a result of a physical change?
A color change is only a chemical change if the change is permanent, if the color change is not permanent, then it is likely a physical change. Let's look at Iodine for example (that's pronounced Eye-oh-deen), it is a solid metal that is grayish in color in its solid state, however in its gas state it's a purple or violet color. Once it reverts to its solid state, it turns gray again. This is a PHYSICAL property of Iodine. If the color changed permanently to something else, it would be a chemical change.
What clues can you use to identify a chemical change?
Characteristics of a chemical change can include a temperature change, a color change, the production of bubbles, the production of a precipitate, and a smell.
What results after a chemical change?
A chemical change produces a form of matter that was not there before. Evidence of a chemical change could be changes in temperature, color, smell, and the production of a gas or a precipitate.
Do bubbles appear when a chemical change is happening?
Yes. They can. The clues of a chemical reaction are production of a gas, change in temperature, color change, production of a precipitate. If you take either baking soda or baking powder, and you add them to vinegar they both form bubbles in a chemical reaction.
Five evidences of chemical change?
A gas is produced when a chemical change takes place. The temperature changes and a substance disappears. A solid is formed and a color change has occurred. Another chemical change is that a new odor is produced.
How can you be sure that at least one chemical change has occurred?
Evidence that a chemical reaction has taken place usually include appearance of a precipitate, change in color, or production of a gas.
What of chemical changes can include production of bubbles heat light smoke sounds or color change?
hi
What are the six types of evidence for a chemical change?
Types of evidence for chemical change include: A gas is evolved. A precipitate appears or disappears. Heat may be evolved or absorbed. A color change occurs. A substance disappears.
Is color changing in leaves a chemical change or a physical change?
a chemical change
Changing form without a change in chemical properties?
This would be defined as a physical change. In chemistry, this would be defined as anything from a change in mass or volume to a change in state (solid, liquid, gas). As long as the substance does not change in molecular structure, it is mostly a physical change. Common indicators of a chemical change is change in color, production of light, production of extensive heat, production of uncommon smells, or even bubbling.
Does the color of the fruit affect the chemical change?
only if you need to research the color of the chemical change
Is changing of color a sign of chemical change?
The change of color may be a sign of a chemical reaction.
Is drying leaves a chemical change or a physical change?
Drying of leaves is a physical change because neither it changes its composition nor does it have any different properties from the original one.
