Question

Summarize the physical and chemical properties of zinc

Answer 1

Phys­i­cal prop­er­ties of zinc
Char­ac­ter­is­tics of the el­e­ment:

den­si­ty – 7.13 g/cm³;
col­or – bluish-white;
melt­ing point – 420 °C;
elas­tic­i­ty and mal­leabil­i­ty in­crease when heat­ed to ap­prox­i­mate­ly 100 °C;
boil­ing point of 906 °C;
at tem­per­a­tures above 200 °C, los­es its elas­tic­i­ty and be­comes a grey pow­der;
high heat ca­pac­i­ty and heat con­duc­tiv­i­ty;
good con­duc­tor.
Chem­i­cal prop­er­ties of the el­e­ment
In or­di­nary con­di­tions, zinc re­acts rapid­ly with air, grad­u­al­ly form­ing a dull grey zinc ox­ide coat­ing. Ad­di­tion­al­ly, zinc re­acts with halo­gens, oxy­gen, chalco­gens, al­ka­lis, acids, am­mo­nia and am­mo­ni­um salts, and even with less ac­tive met­als. Zinc re­acts with both acids and al­ka­lis, mak­ing it an am­pho­ter­ic met­al. When re­act­ing with al­ka­lis, the el­e­ment forms com­plex com­pounds known as hy­droxo-zin­cates.