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When giving the rate of a chemical reaction why would it be significant to know that the reaction rate is an average reaction rate?
Reaction rates are dependent on the concentration of reactants. As a reaction proceeds, the reactants are used up and thus their concentration is lowered. THis means that the maximum rate of reaction will be at or immediately after time zero, when the reaction is only just begun, and the minimum will be when one or more of the reactants' concentrations have reached zero.
Thus, any rate stated for the reaction would only hold for a specific time in the reaction progress and cannot be extrapolated to cover all of that progress. So a mean rate of reaction must be used; this can tell a person, when combined with either the time of beginning, time of ending, or the initial concentrations, what any of the others were for the reaction in question. This is impossible to do if given a specific rate and the time it applied to; you cannot calculate any new information from just those two data.
What else can I help you with?
What pieces of information is giving in a half-reaction?
To the left of a chemical equation are the reactants and to the right are the products.
How you can tell if a mixture is a chemical reaction?
a mixture is by definition not a chemical reactionA mixture is two or more substances which have been combined such that each substance retains its own chemical identity.So a mixture cannot be a chemical reaction, signs of a chemical reaction include:colour changeprecipitation (formation of a solid)effervescence (giving off gas)And every single chemical reaction involves gives of some heat.
What chemical reaction occur in heating the onion?
When an onion is heated, the chemical reaction that occurs is caramelization. This reaction involves the breakdown of sugars in the onion due to heat, resulting in the browning and sweetening of the onion. Additionally, when onion is heated, sulfur compounds are released, giving it its distinct aroma and flavor.
What chemical changes involve breaking and making chemical bonds?
Breaking of bonds but also formation of new bonds.
What kind of chemical reaction in glowing water?
The glowing water typically contains a chemical called luminol, which reacts with an oxidizing agent (such as hydrogen peroxide) to produce a chemiluminescent reaction. This reaction results in the emission of light without the generation of heat, giving the water a glowing appearance.
What is the significance of a negative enthalpy change in a chemical reaction?
A negative enthalpy change in a chemical reaction indicates that the reaction is exothermic, meaning it releases heat energy to the surroundings. This is significant because it shows that the reaction is giving off energy rather than absorbing it, which can affect the temperature and overall energy balance of the system.
What is an endothothermic reaction?
A chemical reaction whereby it takes in heat as supposed to giving it out (as opposed to an exothermic reaction).
What is the formula to completely dissolve baking soda into vinegar?
impossible as it will bubble of a chemical reaction giving off an endothermic reaction
Is luster a chemical or physical or chemical reaction?
Luster is a physical property, not a chemical reaction. It refers to how light is reflected off the surface of a material, giving it a shiny appearance. It is based on the arrangement of atoms in the material and not on any chemical changes.
What pieces of information is giving in a half-reaction?
To the left of a chemical equation are the reactants and to the right are the products.
In a firework show the fireworks explode giving off heat and light is this a chemical change why?
It is a chemical change because the chemical composition is changed during this reaction.
Does fire have more than one element in it?
Yes. A fire is a chemical reaction giving off heat. The reaction requires material with more than one element.
How you can tell if a mixture is a chemical reaction?
a mixture is by definition not a chemical reactionA mixture is two or more substances which have been combined such that each substance retains its own chemical identity.So a mixture cannot be a chemical reaction, signs of a chemical reaction include:colour changeprecipitation (formation of a solid)effervescence (giving off gas)And every single chemical reaction involves gives of some heat.
What chemical reaction occur in heating the onion?
When an onion is heated, the chemical reaction that occurs is caramelization. This reaction involves the breakdown of sugars in the onion due to heat, resulting in the browning and sweetening of the onion. Additionally, when onion is heated, sulfur compounds are released, giving it its distinct aroma and flavor.
What is the proper name for combustion?
The proper name for combustion is a chemical reaction in which a substance reacts rapidly with oxygen, giving off heat and light.
What chemical changes involve breaking and making chemical bonds?
Breaking of bonds but also formation of new bonds.
A substance is giving off heat light and smoke Most likely the type of change that is occurring is?
Chemical change, as it involves a chemical reaction that results in the formation of new substances with different properties.
