Question

please answer the following questions.....its urgent... Q1) What information do you get from the formula H2SO4 ? Q2) What do you understand by -N, N2, 2N and NO2 ? Q3) Identify Monoatomic, Diatomic, Triatomic and Tetraatomic molecules from the following- HCL, HE, O3, H2S, CH4, NH3, CO, P4, SO3, CO2 and Ne. Q4} Write the formula of the compounds formed by- i) CR 3+ and F ii) Hg 2+ and S 2- iii) Pb 2+ and PO4 3- Q5) An element M forms the oxide M2O3 and the chloride MCL3. What will be the formula of its surface? Q6) Calculate the molecular mass of C6H6, CH3OH, CCL4 and H2S. Q7) An element E is trivalent, Write formula of its chloride, oxide and phosphate? Q8) Magnesium and oxygen combine in the ratio 3:2 by mass to form MgO.What mass of oxygen gas would be required to react completely with 48g of magnesium. Q9) Calculate the formula unit of Fe2O3 , Na2CO3 and Al2O3 Q10) Define chemical formula and list varios stepd to write the chemical formula.

Answer 1

H2So4 is sulphuric acid