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Is the formation of a solid a chemical change?
Yes, if it occurs as the result of a chemical reaction. For example, if two clear colorless solutions form a white precipitate (solid) when mixed, that would be an example of a chemical change. The formation of a solid from freezing is a physical change.
What chemical reaction takes place when drops of cold water are added to a white solid formed by heating calium calcium carbonate?
When drops of cold water are added to a white solid formed by heating calcium carbonate (CaCO3), a chemical reaction occurs where calcium hydroxide (Ca(OH)2) is formed. This reaction is a hydration reaction where water molecules react with calcium oxide to produce calcium hydroxide.
Jayne's science teacher mixed a clear liquid with a blue liquid in a beaker. After a few minutes there was a white solid at the bottom of the beaker. What is most likely true about the white solid?
The white solid is likely a precipitate formed from a chemical reaction between the clear and blue liquids. It may have separated out due to being insoluble in the mixture. Analyzing the properties of the white solid could help identify the reaction that took place.
When we place aluminium foil into liquid bromine and find a white solid is that chemical or physical property?
That would be a chemical property, specifically a chemical reaction. The formation of a white solid (aluminum bromide) indicates a chemical change has occurred as the aluminum has reacted with the bromine to form a new substance.
Liquid A Is added to liquid B in a beaker. As the liquids mix a white solid and several bubbles form inside t?
The formation of a white solid and bubbles suggests a chemical reaction is occurring between liquid A and liquid B. The white solid could be a precipitate formed from a chemical reaction, while the bubbles may indicate the release of a gas as a product. Further investigation, such as testing for the presence of specific ions or gases, is needed to determine the exact reaction taking place.
When bromine reacts with sodium to form a white solid is it a physical or chemical change?
The reaction between bromine and sodium to form a white solid is a chemical change. This is because the atoms are rearranging to form new compounds with different properties, indicating a chemical reaction has occurred.
Is the formation of a solid a chemical change?
Yes, if it occurs as the result of a chemical reaction. For example, if two clear colorless solutions form a white precipitate (solid) when mixed, that would be an example of a chemical change. The formation of a solid from freezing is a physical change.
What does this indicate about the reaction that took place in the beaker?
The formation of white precipitate indicates a chemical reaction occurred in the beaker that resulted in the precipitation of a solid product from the solution.
Does cooking food causes chemical changes?
Protein becomes denatured at high temps- ie:egg turns to a solid white from clear
What is the color of zinc chloride when heated?
the chemical reaction is:Zn + 2 HCl = ZnCl2 + H2
What chemical reaction takes place when drops of cold water are added to a white solid formed by heating calium calcium carbonate?
When drops of cold water are added to a white solid formed by heating calcium carbonate (CaCO3), a chemical reaction occurs where calcium hydroxide (Ca(OH)2) is formed. This reaction is a hydration reaction where water molecules react with calcium oxide to produce calcium hydroxide.
When CO2 mixes with limewater how do you know a chemical reaction took place?
When CO2 reacts with limewater (calcium hydroxide), the solution turns milky due to the formation of calcium carbonate, which is insoluble and precipitates out. This indicates a chemical reaction has taken place as a new substance with different properties has formed.
Jayne's science teacher mixed a clear liquid with a blue liquid in a beaker. After a few minutes there was a white solid at the bottom of the beaker. What is most likely true about the white solid?
The white solid is likely a precipitate formed from a chemical reaction between the clear and blue liquids. It may have separated out due to being insoluble in the mixture. Analyzing the properties of the white solid could help identify the reaction that took place.
When we place aluminium foil into liquid bromine and find a white solid is that chemical or physical property?
That would be a chemical property, specifically a chemical reaction. The formation of a white solid (aluminum bromide) indicates a chemical change has occurred as the aluminum has reacted with the bromine to form a new substance.
Liquid A Is added to liquid B in a beaker. As the liquids mix a white solid and several bubbles form inside t?
The formation of a white solid and bubbles suggests a chemical reaction is occurring between liquid A and liquid B. The white solid could be a precipitate formed from a chemical reaction, while the bubbles may indicate the release of a gas as a product. Further investigation, such as testing for the presence of specific ions or gases, is needed to determine the exact reaction taking place.
Does a physical or chemical change occur when aluminum foil is placed into liquid bromine and a white solid forms?
A chemical change occurs. When aluminum foil is placed in liquid bromine, the aluminum reacts with bromine to form aluminum bromide, which appears as a white solid. This reaction is a chemical change because the composition of the substances involved is altered.
When blue copper (2) sulfate is heated a white solid and water are formed. The white solid turns blue and gives out heat when water is added to it. Which terms describe the blue copper (2) sulfate and?
The blue copper (2) sulfate is undergoing a reversible reaction. When heated, it forms a white solid (copper (2) oxide) and water. When water is added to the white solid, it forms the original blue copper (2) sulfate, releasing heat, indicating an exothermic reaction.
