If 75.2 mL of 0.25 M HCl(aq) reacts with an excess of Mg(OH)2(aq), what mass of magnesium chloride could be produced? and What mass of water could be produced?

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Explanation:

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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).

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.