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Things to check whether a chem. reaction is occurring or not:-

  1. Evolution of gas
  2. Change in temperature
  3. Formation of precipitate
  4. Change in colour of solution or substance
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15y ago

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Is chopping a big block of cheese into pieces is an example of a chemical reaction?

bublly bubbles. could u please add more info


When substances are combined and no reaction occurs?

When substances are combined and no reaction occurs, it means that the substances are not capable of undergoing a chemical reaction with each other. This could be due to factors like the stability of the molecules, the absence of necessary reactants, or the lack of sufficient energy to drive a reaction. In these cases, the substances may simply mix together physically without forming any new chemical bonds.


The Factors that could have influenced the rating of the chemical reaction between the liver and the hydrogen peroxide is?

Factors that could influence the rating of the chemical reaction between liver and hydrogen peroxide include the concentration of hydrogen peroxide used, the temperature at which the reaction occurs, the pH of the solution, and the amount of liver tissue present. Additionally, the presence of any catalysts or inhibitors in the reaction mixture could also impact the rating of the reaction.


The energy released when a chemical compound reacts to produce new compounds?

This is known as the heat of reaction, which represents the energy change that occurs during a chemical reaction. It can be exothermic (energy is released) or endothermic (energy is absorbed). Heat of reaction is typically measured in kilojoules per mole of the reactants.


What Three Things can happen when a Chemical Reaction occur?

A chemical reaction can change a substance into a solid, liquid, or gas. It may cause a substance to explode or could cause no change at all.

Related Questions

Is chopping a big block of cheese into pieces is an example of a chemical reaction?

bublly bubbles. could u please add more info


When substances are combined and no reaction occurs?

When substances are combined and no reaction occurs, it means that the substances are not capable of undergoing a chemical reaction with each other. This could be due to factors like the stability of the molecules, the absence of necessary reactants, or the lack of sufficient energy to drive a reaction. In these cases, the substances may simply mix together physically without forming any new chemical bonds.


The Factors that could have influenced the rating of the chemical reaction between the liver and the hydrogen peroxide is?

Factors that could influence the rating of the chemical reaction between liver and hydrogen peroxide include the concentration of hydrogen peroxide used, the temperature at which the reaction occurs, the pH of the solution, and the amount of liver tissue present. Additionally, the presence of any catalysts or inhibitors in the reaction mixture could also impact the rating of the reaction.


List three signs that could make you think a chemical reaction might be taking place?

Formation of bubbles or gas: Gas evolution can indicate a chemical reaction is occurring. Change in color: A sudden change in color could be a sign of a reaction, such as a shift from clear to cloudy. Temperature change: If the reaction generates heat (exothermic) or absorbs heat (endothermic), it can be an indication that a chemical reaction is taking place.


What change could happen during a chemical reaction?

the chemical shall be changed


The energy released when a chemical compound reacts to produce new compounds?

This is known as the heat of reaction, which represents the energy change that occurs during a chemical reaction. It can be exothermic (energy is released) or endothermic (energy is absorbed). Heat of reaction is typically measured in kilojoules per mole of the reactants.


What Three Things can happen when a Chemical Reaction occur?

A chemical reaction can change a substance into a solid, liquid, or gas. It may cause a substance to explode or could cause no change at all.


What is the common chemical in a chemical reaction?

Oxygen as most reactions have it although it could also be hydrogen


What type of chemical reaction could take place between these reactants Fe (s) and CuSO4 (aq)?

The chemical reaction is:Fe + CuSO4 = FeSO4 + CuIt is a single displacement reaction.


How might a thermometer help you decide if there was any chemical change on mixing iron and charcoal?

For a chemical change to occur, there must be a chemical reaction. A chemical reaction would be either endothermic (uses energy, mostly heat), or exothermic (produces energy, again mostly heat). Any change in temperature of the reactants, as measured by a thermometer, will tell you not only ifa chemical reaction occurred, but also which kind of chemical reaction. No temperature change usually indicates that no reaction has occurred, a decrease in temperature would indicate an endothermic reaction, while an increase in temperature would indicate an exothermic reaction.


How could a chemist find out how much mass is given off as gas during a chemical change?

How could a chemist find out how much mass is given off as gas during a chemical reaction


What is the acronym for PKR?

PKR can stand for a lot of things. In entertainment it stands for a poker website. In relation to Science and technology it could be referring to a Pauson-Khand reaction or a chemical reaction. It could also stand for People's Justice Party, a political party found in Malaysia.