Answer:
C₆H₅COOH Benzoic Acid
Explanation:
Here we are using the extraction method to separate benzoic acid from naphtalene in the ether solution by reacting it with the base sodium bicarbonate to produce the salt sodium benzoate ( naphtalene remains in the organic layer ) .
The sodium benzoate is completely soluble in the aqueous layer being a salt, and reacts with hydrochloric acid ( again an acid base reaction ) which precipitates the benzoic acid since the it is insoluble in water hence separating it.
Answer:
Explanation:
check below for explanation in the attached files.
Answer:
are gases at room temperature
usually do not react with other elements
are in a group called the noble gases
are nonmetals
Explanation:
The elements in group 18 or group O are the inert elements. They have completely outermost shell and are not reactive. Every atom reacts with another in order to be like the noble gases.
- All of the elements here are gaseous.
- They do not readily react with other elements.
- They are called noble gases, inert gases, or group O elements.
It should be noted that group 17 elements are very reactive compared to the group O elements.
Answer:
compound is a pure substance while mixture is an impure substance
Compounds are always homogeneous whereas mixtures can be homogeneous or heterogeneous
in a compound, the ingredients are present in definite proportion while the constituents in a mixture are in variable proportion
the properties of compound are identical to the properties of it's ingredients unlike mixture wherein the properties of ingredients and the mixture are same
.. compounds are boiled or melted at definite temperature while mixture do not have a fixed melting and boiling point
