Inorganic Chemistry Answers

Naturally occurring cobalt consists of only one isotope 59Co, whose relative atomic mass is 58.9332. A synthetic radioactive isotope of cobalt 60 Co has relative atomic mass 59.9338, is used in radiation therapy for cancer. A 1.8536g sample of cobalt has an apparent "atomic mass" of 58.9901. Find the mass of 60 Co is this sample?

What principles or rules are violated in the following electronic configuration \\(1s^{2}2p_{x}^{2}\\)?

The electron affinity decreases down the group why?

20cm3 of a gaseous Hydrocarbon were mixed with 90cm3 of O2, and the mixture exploded. At room tempt 60cm3 of gas were left. 40cm3 of the gas(CO2) were adsorbed by NaOH, leaving 20cm3 of O2. Find the empirical formula of the hydrocarbon

Balance and classify the following reaction
Ba(OH)2(aq) + H2SO4(aq) →BaSO4 (s) +H2O(l)

Balance and classify the following reaction
SO3(g) →O2(g) + SO2(g)

Balance and classify the following reaction
Cl2(aq) + KBr(aq) → Br2(aq) + KCl(aq)

Balance and classify the following reaction
AgNO3(aq) + NaBr(aq) → AgBr(s) + NaNO3(aq)

Balance and classify the following reaction
P4O10(s) + C(s) → P4(s) + CO(g)

Balance and classify the following reaction
Mg(s) + HCl(aq) → MgCl2(aq) + H2(g)