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What are some characteristics for a physical change?
A physical change is a change that can be reversed easily and no new substances are made. Examples are state changes ie. solid to liquid or liquid to gas.
What is 2 kind of mixture?
solid/solid liquid/liquid both the same substances together
What solid substances dissolve in liquid?
what is mixtures
What is the change in state called when solid goes to liquid?
The change in state from a solid to a liquid is called melting.
What does the melting point mean?
the highest temperature in which a solid substances turns into a liquid without any change in its chemical contents
What kinds of changes in substances are always physical change?
The kinds of changes in substances that are always physical changes are changes in the state. This is the change from solid, to liquid and then to gas and the reverse.
Do substances absorb or release heat energy as then change from a liquid to the solid phase?
When a substance changes from a liquid to a solid it releases energy. (You take the heat out)
Is toothpowder a solid or liquid?
Does it look and behave like water? If not, it is a solid.
Is quicksand solid or liquid?
Quicksand is a non-Newtonian fluid, which means it can behave like both a solid and a liquid. It appears solid until pressure is applied, causing it to behave like a liquid and trap objects within it.
What is a physical change that occurs because of a decrease in temperature?
When the temperature decreases, substances can change phase from a gas to a liquid or from a liquid to a solid. This is known as condensation or freezing.
What are some characteristics for a physical change?
A physical change is a change that can be reversed easily and no new substances are made. Examples are state changes ie. solid to liquid or liquid to gas.
Change from a solid to a liquid is called?
1. in most pure substances, melting occurs at a specific Temperature called the melting point. 2. the change of state from liquid to solid is called freezing (solidification) 3. the change from a liquid to gas is called Condensation.
How are the state changes of similar to the states changes in most other substances?
These changes of state are: solid to liquid, liquid to gas, gas to liquid, liquid to solid, solid to gas, gas to solid. The majority of substances have these state of matter changes.
What of a liquid to a solid?
change of a liquid to a solid
Why most substances expand when they change from a solid to a liquid?
During the melting the structure of the material is destroyed and the liquid is a low oredered state of matter.
What is the change for liquid and solid?
The change from liquid to solid is called freezing.
How are the state changes of water similar to the state changes in most other substances?
These changes of state are: solid to liquid, liquid to gas, gas to liquid, liquid to solid, solid to gas, gas to solid. The majority of substances have these state of matter changes.
