0
What else can I help you with?
Is a change in mass an indicator of chemical reaction?
A change in mass can be an indicator of a chemical reaction if there is a conversion of reactants into products with different mass compositions. For example, if gas is released during a reaction or if there is a change in the number of moles of substances present, there may be a noticeable change in mass.
What happens during an acidic base titration in the presents of an indication?
During an acid-base titration, an indicator is added to the solution to determine the endpoint, which is when the moles of acid are equal to the moles of base. The indicator changes color at the endpoint, indicating the completion of the reaction. This color change helps in identifying the point of neutralization and determining the concentration of the unknown solution.
What is given off during neutralisation?
Neutralization is a chemical reaction between an acid and a base. The products of all acid/base reactions is a SALT and WATER. EXAMPLE: HCl + NaOH --> NaCl + H2O
What happens during an exothermic reaction and how does it differ from an endothermic reaction?
During an exothermic reaction, heat is released to the surroundings, resulting in an increase in temperature. In contrast, an endothermic reaction absorbs heat from the surroundings, causing a decrease in temperature.
How can hydrochloric acid turn red in color?
When hydrochloric acid reacts with iron, it forms iron(III) chloride, which appears red in color. This happens because of the oxidation state change in the iron ions during the reaction, leading to the red coloration.
Does changing the concentration of an acid affect the temperature at neutralisation?
No, changing the concentration of an acid does not affect the temperature at neutralisation. The temperature change during neutralisation is determined by the amount of heat released or absorbed during the reaction, which is dependent on the specific acid and base involved, not their concentrations.
Is a change in mass an indicator of chemical reaction?
A change in mass can be an indicator of a chemical reaction if there is a conversion of reactants into products with different mass compositions. For example, if gas is released during a reaction or if there is a change in the number of moles of substances present, there may be a noticeable change in mass.
What happens during an acidic base titration in the presents of an indication?
During an acid-base titration, an indicator is added to the solution to determine the endpoint, which is when the moles of acid are equal to the moles of base. The indicator changes color at the endpoint, indicating the completion of the reaction. This color change helps in identifying the point of neutralization and determining the concentration of the unknown solution.
What happens to the potential of the molecules in a reaction?
the potential energy of the molecules changes during a reaction.
Why is a indicator's reaction in acids and bases a chemical change?
When an indicator is added to an acid or base, it undergoes a chemical reaction with the hydrogen or hydroxide ions present in the solution. This reaction causes a change in the color of the indicator, indicating a shift in the pH of the solution. Since a new substance with different properties is formed during this reaction, it is considered a chemical change.
Which describes what happens during a chain reaction?
Neutrons released during a fission reaction trigger other fission reactions.
What happens to the potential energy of the molecule in the reaction?
The potential energy of the molecules change during a reaction.
What happens during an irreversible chemical reaction?
~*cock block*~
What are used to show what happens during a chemical reaction?
Chemical equations are used to show what happens during a chemical reaction. They demonstrate the reactants that are used, the products that are formed, and the balanced relationship between them. Symbols and formulas represent the different elements and compounds involved in the reaction.
Describe why the indicator reaction is pH dependent?
The indicator molecule changes its structure in response to the pH of the solution, leading to a change in color. This pH-dependent change occurs because indicators are weak acids or bases that undergo a reversible chemical reaction with H+ or OH- ions present in the solution, causing a shift in the equilibrium towards a different form with a different color.
What happens to the original substance during a chemical reaction?
The original substances are transformed during a chemical reaction a new substance (compound) is obtained.
What happens to the amount of energy during a chemical reaction?
Do it yourself idiot.
