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How does the evolution of gas occur in a chemical reaction give an example?
This is a sign of a chemical reaction.
Is changing of color a sign of chemical change?
The change of color may be a sign of a chemical reaction.
What is a sign on a chemical reaction that involves a new color being created during the reaction?
This sign doesn't exist.
What is the sign in a chemical reaction that a gas has been produced?
You can see the release of this gas.
Which in the following events is not a common sign that a chemical change taken place?
For example melting, boiling, evaporation, transformation in powder are not signs of a chemical reaction.
Is boiling always a sign of a chemical reaction?
No, boiling is not always a sign of a chemical reaction.
Why is it a sign of a chemical reaction if gas is given off?
It is sign of chemical reaction because smell and heat is produced.
How does the evolution of gas occur in a chemical reaction give an example?
This is a sign of a chemical reaction.
Is production of gas a potential sign of chemical change?
The release of a gas can be a sign for a chemical reaction.
Is changing of color a sign of chemical change?
The change of color may be a sign of a chemical reaction.
Why is paper burning a chemical reaction?
Burning is a sign of a chemical change
What is a sign on a chemical reaction that involves a new color being created during the reaction?
This sign doesn't exist.
What does the () sign signify in the reaction?
The () sign in a chemical reaction signifies that a substance is being added or combined with another substance.
What is the significance of the sign of enthalpy change in chemical reactions?
The sign of the enthalpy change in a chemical reaction indicates whether the reaction is exothermic (negative sign) or endothermic (positive sign). This is important because it tells us if heat is being released or absorbed during the reaction, which can affect the overall energy balance of the system.
Why can you not use an equals sign for a chemical equation?
An equals sign is not used in a chemical equation because it implies a mathematical equality, while a chemical equation represents a chemical reaction where atoms are rearranged to form new substances. Instead, chemical equations use an arrow to indicate the direction of the reaction.
Why does a change in temperature indicate that a chemical reaction may occur?
Because a chemical reaction has different sign's. And heat is one. But if the temperature is dropping then it is not going through a chemical change.
What is the most important sign that a chemical reaction is occuring?
The most important sign is when you smell an odor . when you began to smell and odor that is a automatic chemical change.
