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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 kind of changes in substances are always physical changes?
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.
Which of these refers to a solid changing directly to a gas without first becoming a liquid?
Solids typically melt to liquids before boiling into a gas. However, when a solid goes directly from a solid to a gas, the process is called sublimation. Iodine and dry ice are two common examples of substances that sublimate at room temperature.
What are the examples of physical changes in air and in land?
Physical changes consist of gas -> liquid -> solid through processes of: Gas -> Liquid (Condensation) Liquid -> Solid (Freezing) Solid -> Liquid (Melting) Liquid -> Gas (Evaporation) Gas -> Solid (Deposition) Solid -> Gas (Sublimation) Now considering the question... you ask for "examples." Well maybe the Hydrogen (gas) and Oxygen (gas) in the air condense to form water (liquid). As for land, shouldn't that be everything?
Can all substances go through physical changes?
Yes, all substances can undergo physical changes. Physical changes do not alter the chemical composition of a substance, but rather change its physical properties such as shape, size, or state (solid, liquid, gas). Examples of physical changes include melting, freezing, boiling, or dissolving.
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.
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.
How are the states 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.
What are 2 examples of chemical changes?
chemicle changes like solid to liquid liquid to gas solid to gas
What 2 examples of chemical changes?
chemicle changes like solid to liquid liquid to gas solid to gas
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.
Identify the three states of matter and give two examples of substances in each state?
The three states of matter are solid, liquid, and gas. Examples of substances in the solid state are ice and diamond. Examples of substances in the liquid state are water and ethanol. Examples of substances in the gas state are oxygen and helium.
Changes in state are examples of what changes?
State of matter is referring to a substances existence as a solid, liquid, or gas. So, a common example would be solid water (we call it ice) changing state to liquid water due to the addition of energy (possibly heat). If energy continues to enter the system the liquid water will change state again to become a gas (steam).
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.
Describe four examples of changes in state?
Four examples of changes in state are: solid to gas (sublimation), gas to solid (deposition), solid to liquid (fusion), and gas to liquid (condensation).Four examples of change on state are liquid to solid, solid to liquid, liquid to a gas, and gas to a liquid.
What are boiling point and freezing point examples of?
Boiling point and freezing point are examples of physical properties of substances. Boiling point is the temperature at which a substance changes from a liquid to a gas, while freezing point is the temperature at which a substance changes from a liquid to a solid.
What kind of changes in substances are always physical changes?
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.
