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How is a precipitate evidence for a chemical reaction?
A precipitate forms when two aqueous solutions react to produce an insoluble solid. The formation of a precipitate indicates that a chemical reaction has occurred, as the reactants have undergone a change in chemical composition to produce a new substance with different physical properties. This is observable evidence of a chemical change taking place.
What shows in reaction that chemical change has take place?
Signs that a chemical change has occurred include a color change, formation of a precipitate, evolution of gas (bubbles), or production of heat or light. These observable changes are indicators that new substances have been formed through rearrangement of atoms in the reactants.
What does formation of a percipitate means?
The formation of a precipitate occurs when two solutions react to form an insoluble solid that separates out from the solution. This solid is known as the precipitate. It is a common indicator of a chemical reaction taking place in a solution.
What word do you use to describe a solid which forms in a liquid when a chemical reaction takes place?
Precipitate (a solid compound)
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.
When a chemical reaction takes place the compound formed is called the?
When a chemical reaction takes place, the compound formed is called the product. The product is the end result of the chemical reaction, typically formed from the reactants that underwent a rearrangement of atoms.
What indicators definitely show that a chemical reaction has taken place?
Some indicators that show a chemical reaction has taken place include the formation of a gas, a color change, the production of heat or light, or the formation of a precipitate (a solid formed from two liquids mixing together).
What is a precipitate and when is it observed?
an insoluble sold formed in a chemical reaction that is taking place on a solution. Observed when the amount (concentration) of that substance is greater than its solubility. small crystals settel out in the container.
Is there a reaction if no precipitate or gas is formed in an ionic equation?
Yes, a reaction can still occur even if no precipitate or gas is formed in an ionic equation. The reaction may involve the formation of weak electrolytes, such as water, or other products that remain in solution. Additionally, changes in oxidation states or the formation of complex ions can indicate that a chemical reaction has taken place, even in the absence of visible signs like precipitates or gas evolution.
What is the evidence that a chemical reaction took place when silver nitrate was mixed with ammonium chloride?
The evidence that a chemical reaction took place when silver nitrate was mixed with ammonium chloride is the formation of a white precipitate of silver chloride. This indicates that a chemical reaction occurred between the silver ions from silver nitrate and the chloride ions from ammonium chloride, resulting in the insoluble silver chloride. Additionally, the solution may turn cloudy or there may be a color change, further supporting the occurrence of a chemical reaction.
Can you list three kinds of changes that indicate a chemical reaction has taken place?
Some signs that a chemical change has taken place is that a gas can be produced, the temperature can change, and a substance disappears. Other signs are that a solid is formed, the color changes, and a new odor is produced.
What might you see if a chemical reaction takes place?
1.Precipitate 2.Smoke 3.Change in color
