0
What else can I help you with?
Does a change of state always occur in a chemical change?
not always, like the change is in the display without change in composition then it is change of state, other then will be chemical change
Write 3 differences between chemical and physical change?
Okay now here goes in a physical change no chemical reaction takes place. in chemical change chemical reactions take place. A physical change is reversible but a chemical change is not.In a physical change no new substance is formed(A+B=B) in a chemical change new substances are formed(A+B=C)
Is melting a type of Chemical change?
no- melting is not a chemical change. It is merely a change in state of the same substance not a chemical reaction.
What observations does not indicate that a chemical change has occurred a. change of state b. formation of a precipitate c. absorption of energy d. release of a gas?
Change of state does not necessarily indicate a chemical change. It could be a physical change, such as melting or freezing, where the substance remains the same chemically. On the other hand, the formation of a precipitate, absorption of energy, and release of a gas are all indicators that a chemical change has occurred.
Why are changes of state chemical changes?
They aren't; a change of state is a physical change
What happens to make a chemical reaction?
In A Chemical Reaction the following take place a) there is evolution of a gas b) change in colour c) change in state d) change in temperature
Is change of state a chemical change?
No, change of state is a physical change.
What is the difference between a chemical change and a change of state?
A chemical change involves a rearrangement of atoms to form new substances with different chemical properties, while a change of state is a physical change where a substance transitions between its solid, liquid, or gas state without changing its chemical composition.
What makes a reaction to happen?
In A Chemical Reaction the following take place a) there is evolution of a gas b) change in colour c) change in state d) change in temperature
Does a solution have a chemical change?
A solution does not have a chemical change, but it does have a physical change in state.
What is needed for a solid to sublime and what changes of state occur?
pressure and the change of state is chemical
Does a change of state always occur in a chemical change?
not always, like the change is in the display without change in composition then it is change of state, other then will be chemical change
When bonds between atoms are broken or formed is the outcome A a physical change B an element increasing in size C a chemical change D a change of state?
C. a chemical change. When bonds between atoms are broken or formed, it involves a rearrangement of the atoms and results in the formation of new substances with different chemical properties. This is characteristic of a chemical change.
Is decaying a chemical or physical changes?
Better to state it a biochemical change if required can state it chemical change
Write 3 differences between chemical and physical change?
Okay now here goes in a physical change no chemical reaction takes place. in chemical change chemical reactions take place. A physical change is reversible but a chemical change is not.In a physical change no new substance is formed(A+B=B) in a chemical change new substances are formed(A+B=C)
Is the change of state a chemical or physical chenage?
A change of state is a physical change.
When Ethanol boils is that a chemical change or chemical property?
neither. it is a change of state.
