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ummm mabey look on another website or scroll down because guess what idkk haha homework stins:( hate techers cause they dont understand how friging busy people are being active duhh not sitting in a chair doing crap teachers are just idots we just pretend to like them well some not all ahah i promise hope this helped uuu love u <333 xoxox
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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.
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 is the only sure evidence for a chemical reaction?
The only sure evidence for a chemical reaction is the formation of new substances with different properties from the original reactants. This can be observed through changes in color, odor, temperature, or the production of a precipitate or gas.
What is the evidence that a chemical reaction occured in silver nitrate and potassium iodide?
The evidence that a chemical reaction occurred in the reaction between silver nitrate and potassium iodide is the formation of a yellow precipitate of silver iodide. This precipitate forms due to the exchange of ions between the two reactants, resulting in the creation of a new compound with different chemical properties than the original substances.
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.
What evidence of chemical reaction would be seen when burning a match?
Burning is a chemical reaction (oxidation).
What would provide the best evidence that a chemical reaction had occurred?
The best evidence that a chemical reaction has occurred includes observable changes such as the formation of a gas (bubbles), a color change, the production of light or heat (exothermic reaction), or the formation of a precipitate (solid). Additionally, changes in properties such as odor or taste can also indicate a reaction. These indicators signify that new substances with different chemical properties have been formed.
What observations give evidence that chemical reaction has happen?
No
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.
What evidence of a chemical reaction is shown in the photo?
lol what photo
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.
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
What evidence in chemical reaction in mole?
Mole is the the unit for amount of substance in SI.
What evidence of a chemical reaction might you see by rusting of an iron nail?
oxidation
What is usually evident of a formation of a precipitate?
Formation of a precipitate is evidence of a chemical reaction.
What would not be evidence that a chemical reaction has occurred in a container?
a perfectly claen container
What should not be used to indicate a chemical reaction?
Change of shape can not be used to indicate a chemical reaction has happened. Examples of evidence of a chemical reaction are changes in odor or color.
