Answers

Consider the following reaction equation: CaCO(_{3(s)}) + 2HCI(_{(aq)}) → CaCl(_{2(aq)}) + H(_2)O(_{(l)}) + CO(_{2(g)}). What mass of CaCI(_2)…

The number of sulphur atoms in 3.20g of SO(_{2(g)}) is [O = 16.0;S = 32.0; Avogadro constant =…

The vapour pressure of a liquid depends on l. temperature. ll. rate of condensation. III. cohesive forces holding…

MgO does not readily dissolve in water because A. of its high melting point B. it is a…

The complex compound formed by the combination of two elements with a large electronegativity difference is likely to…

The complex compound formed when aluminum dissolves in aqueous sodium hydroxide is A. Na3Al(OH)4. B. NaAl(OH)4 C. NaAl(OH)3…

Which of the following elements is a metalloid? A. Carbon B. Oxygen C. Silicon D. Sodium Correct Answer:…

The shape of a graphite crystal is A. tetrahedral B. pyramidal C. hexagonal D. octahedral Correct Answer: Option…

The d-block elements are paramagnetic because they A. contain paired electrons which are repelled by magnetic field B.…

The atomic radii of metals are usually A. greater than their ionic radii B. equal to their ionic…