Answer:
Examples of pure substances include tin, sulfur, diamond, water, pure sugar (sucrose), table salt (sodium chloride) and baking soda (sodium bicarbonate). Crystals, in general, are pure substances. Tin, sulfur, and diamond are examples of pure substances that are chemical elements. All elements are pure substances
Explanation:
Using electronegative. If the difference is between 0 and .4, the bond is nonpolar,If the difference is between .4 and about 1.9, the bond is polar, and if the difference is over 1.9 it is typically ionic.
Answer:
the name of the compound with formula n2cl4 is dinitrogen tetrachloride.
in this compound, two central nitrogen atoms are bonded by covalent bonds by sharing valence electron pairs among each other. two chlorine atoms are attached to each nitrogen atom by covalent bond formation.
one molecule of the compound n2cl4 has 2 nitrogen atoms and 4 chlorine atoms. for this reason, its name is dinitrogen tetrachloride. here, "di" represents "two" and "tetra" represents "four".
Explanation: