Yes. Research litmus paper.
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.
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.
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.
This can be a clue yes.
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.
fizzingcolor change (of course, this exempts artificial coloring)odorformation of precipitateproduction of gasformation of new substance (elemental bonding)
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.
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.
You have to hold down the 1 button. If that doesn't work, then I have NO clue.
i have no clue
I dont have a clue
a simile or metaphor