The statement that correctly explains the polarity of the water molecule is B. Oxygen end has a partial negative charge and the hydrogen end has a partial positive charge.
Answer:
Adding salt to the water increases the density of the solution because the salt increases the mass without changing the volume very much. When you add table salt (sodium chloride, NaCl) to water, the salt dissolves into ions, Na+ and Cl-. The volume increases by a small factor, but the mass increases by a bigger factor.
Explanation:
3<span> H2SO4
+ 2 Al(OH)3 = Al2(SO4)3
+ 6 H2O</span>
Metals :-
Group 1A - Alkali metals ( highly reactive metals)
Non-metals :-
Group 17 - Halogens ( highly reactive non-metals )