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When you burn magnesium in air what might show you a chemical reaction has taken place?
A chemical reaction taking place when burning magnesium in air can be indicated by the bright white flame and the formation of magnesium oxide, a white powder that forms on the surface of the magnesium. Heat is also released during this exothermic reaction.
When calcium carbonate and hydrochloric acid react bubbles form. How do you know a reaction occurred?
You can tell that a reaction occurred because you observed the formation of bubbles, which indicates the release of a gas (carbon dioxide) as a product of the reaction between calcium carbonate and hydrochloric acid. The appearance of bubbles is a clear sign of a chemical change taking place.
A change in matter that produces new substances is called?
Chemical change. References: Intro to Matter book.
What is the correct balanced chemical equation for this reaction?
To provide the balanced chemical equation, I would need to know the specific reaction you are referring to. Can you please provide the reactants and products involved in the reaction?
An amtom undergoes a reaction ant attains a more stable from how do you know is it was chemical or nuclear reaction?
If an atom undergoes a chemical reaction, it involves rearrangement of electrons in the outer shell to form new chemical bonds. On the other hand, if it undergoes a nuclear reaction, it involves changes in the atomic nuclei, resulting in the formation of different elements or isotopes. To determine whether it was a chemical or nuclear reaction, observe whether there are changes in the electron configuration or in the atomic number and mass of the atom.
When you burn magnesium in air what might show you a chemical reaction has taken place?
A chemical reaction taking place when burning magnesium in air can be indicated by the bright white flame and the formation of magnesium oxide, a white powder that forms on the surface of the magnesium. Heat is also released during this exothermic reaction.
When calcium carbonate and hydrochloric acid react bubbles form. How do you know a reaction occurred?
You can tell that a reaction occurred because you observed the formation of bubbles, which indicates the release of a gas (carbon dioxide) as a product of the reaction between calcium carbonate and hydrochloric acid. The appearance of bubbles is a clear sign of a chemical change taking place.
How do you know when a chemical reaction happend?
You can tell a chemical reaction has occurred if there is a change in color, formation of a gas or solid precipitate, evolution of heat or light, or a change in odor. Additionally, changes in the chemical composition, such as the breaking or forming of bonds between atoms, indicate a chemical reaction has taken place.
What are 3 ways you know a chemical change has taken place?
Three signs of a chemical reaction include the release or absorption of heat, a change in color, and the creation of a gas or a precipitate.
How do you know that a chemical change took place when sodium and clorine join to form table salt?
it is an ionic and exothermic reaction i.e. when it will take place heat will be liberated
What three ways would let you know that a reaction had taken place?
Changes in color: If the color of the reactants or products changes during the reaction, it is a sign that a chemical reaction has occurred. Formation of a gas: Production of gas bubbles or fizzing indicates a chemical reaction, such as in the reaction between an acid and a carbonate. Changes in temperature: If the reaction absorbs or releases heat, causing a change in temperature in the surroundings, it signals a chemical reaction has taken place.
What are the five ways to know that chemical reaction happened?
don't know
How we know a chemical change has occurred when burning a candle?
Burning is a chemical reaction, an oxydation.
A change in matter that produces new substances is called?
Chemical change. References: Intro to Matter book.
How can you know this is a chemical reaction?
Evidence of a chemical reaction include the following: formation of a precipitate formation of a gas change in temperature change in color
How do molecules generate friction or heat?
How is heat created in a chemical reaction? you say; It is created from bonds cracking.Each bond has large energy,when it cracks, releases its energy. We know that when friction accurse there is a release of electrons. We also know that the release will cause a polarity change or change in polarity intensity. Is this change, not the same as the change taking place in the chemical reaction? Is it not polarity that bounds atoms? I THINK..... the answer is the same in both cases. change in polarity, intensity or the release of electrons. MY name is JACK D PRESNULL. (806)898-0570 How is heat created in a chemical reaction? you say; It is created from bonds cracking.Each bond has large energy,when it cracks, releases its energy. We know that when friction accurse there is a release of electrons. We also know that the release will cause a polarity change or change in polarity intensity. Is this change, not the same as the change taking place in the chemical reaction? Is it not polarity that bounds atoms? I THINK..... the answer is the same in both cases. change in polarity, intensity or the release of electrons. MY name is JACK D PRESNULL. (806)898-0570
What is the correct balanced chemical equation for this reaction?
To provide the balanced chemical equation, I would need to know the specific reaction you are referring to. Can you please provide the reactants and products involved in the reaction?
