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A change in color when two solutions are mixed together is a clue that what has taken place?
A change in the color of a solution is a sign thatthere is a chemical change happening. A chemical change happens when two substances combine forming another substance. It can also happen when two or more substances decompose.
Which is a clue that a chemical change has taken place?
Well, there are four clues to a chemical change. The first clue is a transfer of energy. For example, energy is transferred from methane in natural gas to cook food. The second clue is a change in color. Food browning while being cooked is an example of this. The third clue is the production of a gas. Some cleaning chemicals create bubbles upon contact with soap scum. This is evidence of a chemical change. The last clue is the formation of a precipitate. The ring of soap scum in a bathtub is a precipitate, and evidence of a chemical change.
What are two possible indications that a chemical change has taken place?
Color ChangesAs in the case of autumn leaves, a change in color is a clue to indicate a chemical change.Perhaps you have found a half eaten apple that turns brown. The reason is that a chemical change has occurs when food spoils.Odor ChangesIt only takes one experience with a rotten egg to learn that they smell different that fresh eggs. When eggs and food spoil, they undergo a chemical change. The change in odor is a clue to the chemical change.Production of Gases or SolidsThe formation of a gas is a clue to chemical changes. The bubbles of gas that you observed form when an antacid is dropped into water is an example of change.Another clue that a chemical change has occurred is the formation of a solid. A solid that separates out of solution during a chemical change is called a precipitate.Energy - Absorbed or ReleasedAnother sign of a chemical change is the release or gain of energy by an object.Many substances absorb energy to undergo a chemical change. Energy is absorbed during chemical changes involved in cooking, like baking a cake.
Does the color or shape of the spice can or jar indicate the age of the spice?
This can be a clue yes.
Is a change in shape a clue that indicate a chemical change?
It is a physical change unless it is caught on fire to mold into a different shape then it would be a chemical change. The substance that does change shape does not develop new chemical properties.
What must you know if a chemical change occurs?
fizzingcolor change (of course, this exempts artificial coloring)odorformation of precipitateproduction of gasformation of new substance (elemental bonding)
How does a chemical indicator work?
A chemical indicator works by changing color in response to a change in the chemical environment, such as a change in pH. This color change provides a visual clue about the presence or absence of a particular substance or a specific condition. Chemical indicators are often used in laboratory experiments to monitor reactions or in various applications such as pH testing.
What are the five clues that suggests a chemical reaction is taking place?
first when there's a physical change in the substance second there will be a solution or a formula to that substance third is, it involves temperature fourth is change in color of the substance fifth is the bubbling of another substance is yet an another clue that a chemical reaction has occured.
How do you change the pin color in Wii bowling?
You have to hold down the 1 button. If that doesn't work, then I have NO clue.
What chemical equation?
i have no clue
Part of speech that indicate what the subject does or is?
I dont have a clue
What may indicate that a sentence contains a contrast context clue.?
a simile or metaphor
