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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.
Explain how you can tell whether a chemical reaction has taken place?
A chemical change or reaction happens if new substances are formed. there may be a change in temperature so the reaction mixture may heat up or cool down. it also might change colour, give off bubbles of gas or fumes and you also might hear fizzing or a gas might explode.
What shows changes that take place during a chemical reaction?
Evidence of a chemical reaction includes color change, formation of precipitate, evolution of gas, and changes in temperature. These changes can indicate that new substances are being formed through the rearrangement of atoms.
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.
What are clues that a chemical reaction has taken place A Formation of a gas B Constant temperature C Steam D Change in color?
A) Formation of a gas: Bubbles or fizzing can indicate the release of a gas during a chemical reaction. C) Steam: The presence of steam may indicate that water is being formed as a product of the reaction. D) Change in color: A noticeable change in color of the substances involved can suggest a chemical reaction has occurred.
The change that takes place when two or more substances interact to form new substances is called a reaction.?
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The change that takes place when two or more substances to form new substances is called a chemical reaction.?
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Is the change that takes place when two or more substances interact to form new substances.?
A chemical reaction is the change that takes place when different substances react with one another to form new substances. The substances that react in a chemical reaction are called the reactants and the new substances formed are called the products.
A ______ reaction is the change that takes place when two or more substances interact to form new substances?
Chemical (Apex)
Are chemical reactions a chemical change of original substances before a chemical reaction takes a place?
Chemical reactions involve the breaking and forming of chemical bonds in the original substances, resulting in a chemical change. Before a chemical reaction occurs, the original substances have specific chemical properties that undergo transformation during the reaction. The reactants interact to form new products with different chemical compositions.
What do you call the substances before a chemical reaction takes place?
These initial substances are the reactants.
The change that takes place when two or more substances what to form new substances is called a chemical reaction?
(Apex) interact
How do you determine a chemical change has occurred when two substances are combined?
A chemical change can be determined when two substances are combined by observing if there is a color change, formation of a precipitate, evolution of gas, or change in temperature. Additionally, if the chemical properties of the substances change, such as their reactivity or toxicity, it indicates a chemical reaction has taken place.
Do you think a chemical reaction has taken place Can you explain your reasoning behind your conclusion?
Yes, a chemical reaction has likely taken place if there is a change in the chemical composition of the substances involved. This can be observed through the formation of new substances, changes in color, temperature, or the release of gas. These are all indicators that a chemical reaction has occurred.
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.
Gun powder explodes is it a chemical or physical change?
Chemical, since it is no longer gun powder after the reaction, it is smoke.
What Change occurs when One substances reacts with another substance?
When one substance reacts with another, a chemical change takes place. This involves the breaking and forming of chemical bonds, resulting in the creation of new substances with different chemical properties than the original ones.
