Hoà tan 8g MgO trong 87.6g dd HCl 25%. a. Tính khối lượng muối tạo thành
b. Tính nồng độ phần trăm các dung dịch thu được sau phản ứng

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.