Determine the approximate density of a high-leaded brass that has a composition of 64.5 wt% cu, 33.5 wt% zn and 2.0 wt% pb. the densities of cu, zn, and pb are 8.94.7.13 and 11.35 g/cm, respectively. g/cm3 e textbook and media

The approximate density of a high-leaded brass is δ = 8,40 g/mL

Explanation:

Lead brasses are used for their high machinability and atmospheric corrosion resistance. To obtain the density of this solid solution you need to do the weighted average, thus:

δ =

δ = 8,40 g/mL

I hope it helps!

coral.

explanation:

coral. many marine organisms that produce calcium carbonate shells or skeletons are negatively impacted by increasing co2 levels and decreasing ph in seawater.

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).