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What color does phenol red change to when carbon dioxide is present?
It turns a yellow-ish color when CO2 is added.
What happened to the sexual fish once new minnows were added to the pool?
Cells
Is there a whole house air purifier system, or do I need a separate unit in each room?
You can have an air purification system added to your current heating and or cooling system.
Why do substance s expand when energy is added to them as heat?
When heat is added to a system, it increases the kinetic energy of the molecules. Increased K.E in system causes molecules to move further away from each other. This causes system to increase in volume. Significant increase in volume might not occur but at microscopic level it definitely changes.
How does a can of paint get its color?
Pigments are added to the paint. Pigments are added to the paint. Pigments are added to the paint.
Why Hcl is added in estimation of phenol?
Hydrochloric acid (HCl) is added to the solution during the estimation of phenol to convert phenol into its corresponding chloride salt, which is easier to separate and quantify. This reaction helps in the extraction and analysis of phenol from the sample.
What happens when water is added to phenol?
tribromophenol is formed.
What happens when bromine water is added to phenol?
tribromophenol is formed.
What happens to an elodea leaf when added a phenol red solution?
When an Elodea leaf is added to a phenol red solution, the leaf will release oxygen through photosynthesis. The oxygen will cause the phenol red solution to change color, indicating the presence of oxygen production.
What element is the donor impurity in silicon?
Silicon has 4 valence electrons. When a penta-valent impurity like phosphorus is added, conduction takes place through the excess electron, the donor. Arsenic is another good example of a donor impurity
What will happen to the color of sodium bicarbonate if phenol red is add?
If phenol red is added to sodium bicarbonate, the color of the solution will change based on the pH. In an acidic solution, phenol red will appear yellow, in a neutral solution it will be red, and in an alkaline solution (such as when sodium bicarbonate is added), it will turn a pink or magenta color.
What is the nature of bonds in N type and P type semi conductors?
The bonds in a N type or a P type semiconductor depends upon the impurity added into it. For example a trivalent impurity is added then three bonds will be formed by each atom and it becomes a P-type semiconductor whereas if a pentavalent impurity is added then five bonds will be formed by each and every atom and it becomes a N-type semiconductor.
Why phenol does not dissolve in water when excess?
Phenol is slightly soluble in water due to hydrogen bonding between the hydroxyl group of phenol and water molecules. However, when excess phenol is added, it disrupts the hydrogen bonding network of water molecules, making it less soluble. This is because phenol-phenol interactions become stronger than phenol-water interactions, leading to precipitation.
What is doping in conductor?
The process of adding suitable impurities in the intrinsic semiconductor is called doping. The impurity added to the intrinsic semiconductor to increase its conductivity is called dopant. There are some methods of doping in case of a conductor.impurity atoms can be added to the intrinsic semiconductor in different ways discussed below:A very small quantity of impurity atoms is made by diffusing into the high purity molten material such as germanium when the crystal is grown out of melt.Impurity atoms can also be added into the intrinsic semiconductor by heating it in the environment having impurity atoms.Impurity atoms can also be added into the intrinsic semiconductor by bombarding it with the impurity atoms.
When added as impurity into the silicon produces n -type semiconductor?
Phosphorus, when added as an impurity into silicon, will produce an n-type semiconductor. This is because phosphorus has five valence electrons compared to silicon's four, resulting in an extra electron that can contribute to the conductivity of the material.
Does phenol red change baking soda to red?
Phenol red is a pH indicator that changes color in response to pH changes. It turns yellow in acidic conditions and red in basic conditions. When added to a solution containing baking soda (sodium bicarbonate), which is a basic substance, phenol red can turn red.
Phenol red turns what color when carbon dioxide is added?
Phenol red turns yellow in the presence of carbon dioxide due to the formation of carbonic acid. This acidic environment causes the phenol red indicator to shift from its original red color to a yellow hue.
