1. Presence of Preciptate 2. Color Change 3. Smell Change 4. Temperature change Basically, look for: Visual Indicators (precipitate, colour changes, fizzing/bubbling) Smell, Touch (temperature increase/decrease)
Precipitation formsProduction of bubblesTemperature changeColor change
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When a chemical change occurs, there are two types of ways heat can be involved. In an endothermic reaction, more heat enters the reaction than leaves. In an exothermic reaction, more heat leaves the reaction than enters.
You can observe the formation of a precipitate (solid) from two clear solutions or a color change in the reaction mixture. Another indication is the release or absorption of heat or light during the reaction.
During a chemical reaction, the atoms are rearranged to form new compounds. The original compounds are broken apart and recombined in different ways to produce new substances with different properties.
Precipitation formsProduction of bubblesTemperature changeColor change
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During a chemical reaction, atoms are rearranged and bonded together in new ways, forming different substances. The total number of atoms remains the same before and after the reaction, as atoms are neither created nor destroyed in a chemical reaction.
When a chemical change occurs, there are two types of ways heat can be involved. In an endothermic reaction, more heat enters the reaction than leaves. In an exothermic reaction, more heat leaves the reaction than enters.
Succesfully and unsuccessfully are two typical methods.
You can observe the formation of a precipitate (solid) from two clear solutions or a color change in the reaction mixture. Another indication is the release or absorption of heat or light during the reaction.
During a chemical reaction, the atoms are rearranged to form new compounds. The original compounds are broken apart and recombined in different ways to produce new substances with different properties.
In a chemical reaction, the bonds of the reactants are broken. The atoms will rearrange and new bonds will form.
Heat can be involved in a chemical reaction that is endothermic(absorbs heat) or that is exothermic(releases heat)
There are several ways that the rate of reaction may be increased. Some of the more common ways areincrease temperatureincrease surface area (grind or powder the reactants)use a catalystagitate/stir the reaction mixture
In chemical kinetics, reaction rate refers to how fast a reaction occurs, rate law is the mathematical expression that relates the reaction rate to the concentrations of reactants, and rate constant is a constant value that represents the speed of the reaction at a specific temperature.