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What changes gives NO evidence that a chemical reaction has taken place?
Changes such as a change in state (solid to liquid), change in color, change in odor, change in solubility, or change in temperature do not provide direct evidence that a chemical reaction has occurred. These changes can be indicative of a physical change rather than a chemical change. To confirm a chemical reaction, additional evidence such as the formation of new substances, evolution of gas, or consumption of reactants is necessary.
A chemical reaction is the change that takes place when two or more substances?
A chemical reaction is the process in which two or more substances interact to form new substances with different chemical properties. This process involves breaking and forming chemical bonds.
Two chemicals start to bubble when mixed This show is us a chemical reaction occurring?
When two chemicals bubble upon mixing, it typically indicates a chemical reaction is taking place. The formation of gas bubbles usually suggests a release of gas as a product of the reaction. This observable change is a common indicator of a chemical transformation.
Is decomposition reaction a chemical reaction?
It depends on the nature of the decomposition. if you are talking about biodegradeability in a substance, then no, its decomposition is mainly due to bacteria that will break down the various particles in the substance ("eat" them). There are, however certain chemical reactions which take place within the bacteria as the substance is being broken down, (much like those that happen in the human body) and the possibility of there being other products in the vicinity which may react to the substance (and degrade it) is always present. It could be said that decomposition is therefore a chemical reaction (or rather a series thereof), but with biodegradeability in mind it is not generally thought of as such.
Bubbling present during a chemical reaction is evidence of what?
Bubbling present during a chemical reaction is evidence of a gas being produced. The formation of gas bubbles indicates that a chemical change is taking place, often as a result of a reaction between two or more substances.
When a chemical reaction takes place in an open system?
When a chemical reaction takes place in an open system, it can exchange both matter and energy with its surroundings. This means that reactants or products can enter or leave the system, affecting the overall reaction. Consequently, the reaction may not proceed as predicted due to these exchanges.
One of 5 things have to happen for a chemical reaction to take place?
the requiredactivation energy is the basic factor for a reaction to start.
If heat is produced by a chemical system?
If heat is produced by a chemical system, it means that an exothermic reaction is taking place. In an exothermic reaction, heat is released to the surroundings as a byproduct of the reaction. This can result in an increase in temperature of the system.
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
What a chemical reaction mean?
A chemical reaction is; when there is a chemical change taking place from energy or shifting of molecular structure.
What type of reaction take place in rancidity?
chemical reaction takes place in rancidity
What evidence is there to show that a chemical reaction has taken place when an egg is cooked?
The change in color indicates that a chemical reaction has taken place.
What would you expect to happen if you mixed argon and sodium together?
Since argon is a noble gas, I wouldn't expect much to happen; specifically, I wouldn't expect any chemical reaction.
What is meant by thermodynamics of a chemical reaction?
It refers to the energy changes that take place during a chemical reaction.
What chemical reaction is taking place in the green organelles in plant cells?
This chemical reaction is called photosynthesis.
What reaction will take place with baking soda and vinegar?
a chemical reaction..
What are the ending materials in a chemical reaction called?
The ending materials in a chemical reaction are called products. These are the substances that are formed as a result of the chemical reaction taking place.
