Yes
a physical reaction for the chemical structure is not changing.
In a chemical reaction something new is created. A chemical change is inreversible where as a physical change is. In a physical change nothing new is formed.
The process of burning in the presence of oxygen is that of a chemical change. It is a chemical change and not a physical change because the prodects do not have the same properties as the reactants.
Water is not a reaction at all. If you mean to ask if a state change in water is chemical or physical, it is physical.
A physical change is one in which the chemical composition of the substance does not change. A chemical change is one in which new products are formed with their own unique chemical compositions and properties.
A change in state, such as boiling or melting, does not always indicate a chemical reaction has occurred. It could be a physical change.
Both. A chemical reaction occurs & a physical change is noticeable.
Chemical change
This is a chemical reaction, a chemical change.
no its a chemical reaction
A physical reaction is when no new substances are formed, there is a change of state eg ice melting to a liquid. A chemical change is when the reaction forms a new substance. eg gas bubbles. An acid reaction can be both. You need to look at the reaction taking place, look for change of state (physical) or any colour change or gas bubbles (chemical).
False. A change in temperature can indicate a chemical reaction, but it is not always the case. Temperature changes can also result from physical changes, such as phase transitions (e.g., melting or boiling). Therefore, while temperature change can be a sign of a chemical reaction, it is not a definitive indicator on its own.