The following solutions are added together: .5l of .5m hcl, 300 ml of .2m naoh, and 100ml of .4m ca(oh)2. calculate the concentration of the excess acid or base

Explanation:

Total volume:

Total acid (H+) moles:

Total base (OH-) moles:

Excess acid:

Concentration:

passing a magnet thought the

mixture , because iron gets attracted to magnet .

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).