a. Alloy of sodium with mercury.
Answer:: Sodium amalgam, commonly denoted Na(Hg), is an alloy of mercury and sodium.
b. Molecular formula of the common ore of aluminum.
Answer:: Bauxite. The molecular formula is Al2O3.H2O
c. The oxide that forms salt and water by reacting with both acid and base.
Answer:: Amphoteric oxides
d. The device used for grinding an ore.
Answer:: Ball mill, is often used for grinding an ore and getting enough size reduction.
e. The nonmetal having electrical conductivity.
Answer:: Graphite is the only non-metal element that is a good conductor of electricity
f. The reagent that dissolves noble metals.
Answer:: Aqua Regia, 1:3 mixture of concentrated nitric and hydrochloric acids can dissolve noble metals such as gold, palladium, and platinum.
