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Why is there a color change when Sudan iv is added to a fat?
There is a colour change because like fats, Sudan IV is not soluble in water. So when you add Sudan IV to lipids, it will break down therefore the chamical reaction that takes place is the colour change.
What particles change in chamical change?
In a chemical change, the particles that change are atoms and molecules. Bonds between atoms break and form new connections, leading to the formation of different substances with unique chemical properties. The number and type of atoms remain the same before and after the reaction, but their arrangement and bonding change.
By heating green copper carbonate so that it changes to black copper oxide will this be a chamical or physical change?
The change from green copper carbonate to black copper oxide is a chemical change because it involves a chemical reaction where the chemical composition of the substance is altered. The color change indicates a new substance has formed, making it a chemical change.
A reaction to a change is called a?
A reaction to a change
What can change the rate of reaction of enzymes?
Heat can change the rate of reaction
What is the enthalpy change for the reverse reaction?
The enthalpy change for the reverse reaction is equal in magnitude but opposite in sign to the enthalpy change for the forward reaction.
How does the presence of a catalyst affect the enthalpy change of a reaction?
The presence of a catalyst affect the enthalpy change of a reaction is that catalysts do not alter the enthalpy change of a reaction. Catalysts only change the activation energy which starts the reaction.
How can you tell the difference between a chemical reaction and not a chemical reaction?
A chemical reaction will do the following; Change colour Create smoke A non chemical reaction (Physical Reaction) will do the following; Change State Be able to change back to the original materials
What does the delta h of a reaction represent?
Either the change (which the delta refers to) of the height (which the h represents).
What is the Normal reaction of urine and why does it change?
acidic reaction
What do enzymes change about a chemical reaction?
The Reaction Rate
Is Gas produced from a reaction is a phase change and not a chemical change.?
A gas released during a chemical reaction is a chemical change.
