5ml of ether extract Of any plant was evaporated to dryness.
The residue was dissolved by heating in 1-2ml of 50% methanol. Metallic magnesium was added to the mixture followed with 5-6 drops conc. HCl. The development of an orange colour indicates the presence of flavanones.
i dont know either...
Because there's a chemical reaction going on.
No. A chemical reaction is not alive.
A chemical reaction is represented by a chemical equation.
A test tube or a Berzelius or an Erlenmeyer beaker, a special reactor, an oven, a furnace etc.
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glowing splint ... if it relights then the chemical reaction produces oxygen.
There is no chemical or physical reaction in this test.
This change in color indicates a chemical reaction taking place in the test tube. The specific reaction that caused the color change would depend on the substances present in the test tube and their chemical properties.
i dont know either...
Chemical reaction
One can predict if a precipitate will form in a chemical reaction by looking at the solubility of the reactants. If the product of the reaction is insoluble in the solvent, a precipitate will likely form. This can be determined by consulting a solubility table or conducting a solubility test.
A hot test tube typically indicates that a reaction is occurring inside the test tube, as heat is often used to speed up chemical reactions. It could also indicate that a sample is being heated to change its state or to facilitate a specific chemical process. Additionally, it could suggest that the contents of the test tube are being sterilized.
Combustion is a chemical reaction.
No. A chemical reaction is not alive.
Because there's a chemical reaction going on.
no but semen mixed with blood does. it causes a chemical reaction with your breath