0
What else can I help you with?
When a physical change in a sample occurs which does not change?
Substance in the material Remain the same
Is water freezing an example of a different substance being formed?
No it is not!
Can indicators change colour twice?
Yes.
Is testing stones with acid a physical or chemical change?
Testing stones with acid is a chemical change because it involves a chemical reaction between the acid and the minerals in the stone, resulting in a new substance being formed.
What are the sing of chemical change?
Signs of chemical change are when a substance changes into a new substance. Like Paper being burned turns into gray powder. That is a chemical change.
What kind of change occurs with no new substance being formed?
physical changes
A physical change is best defined as?
a process that does not change the chemical composition of a substance. A change in a substance with no new substances being formed
What type if change results in a new substance being formed?
chemical
What chemical reaction does not result in a new substance being formed?
phisical change
Why are metal alloys an example of a physical change and not a chemical change?
They are a physical change because it is not like burning where a new substance is being formed.
What does not result in a new substance being formed?
A physical change, such as melting ice or cutting paper, does not result in a new substance being formed. These changes only affect the physical state of the matter, not its chemical composition.
Which type of change results in new compounds being formed?
A chemical change results in new compounds being formed. In a chemical change, the atoms rearrange to form different chemical substances with new properties. This is different from a physical change, where the substance remains the same but changes in appearance or state.
What are four types of evidence that indicate that a chemical reaction may have taken place?
Change in temperature: If the temperature of the reactants increases or decreases significantly. Formation of a precipitate: A solid substance formed when two liquids react. Change in color: Observing a change in color before and after the reaction. Evolution of gas: Gas bubbles forming or a gas being released during the reaction.
How is cutting a physical change?
Cutting iron is considered a physical change because there is not a new substance being formed. It is just changing the shape. It is still just iron.
When a physical change in a sample occurs which does not change?
Substance in the material Remain the same
What changes are evidence for a chemical change?
Remember that a chemical change is anything that alters the identity or composition of a substance. So something such as color change, a solid being formed, a gas being produced or temperature changing would constitute a chemical change.
Is water freezing an example of a different substance being formed?
No it is not!
