Answers The substance often use for vulcanization of rubber is The substance often use for vulcanization of rubber is A. chlorine B. hydrogen peroxide C. sulphur D. tetraoxosulphate… Read More
Answers For a reaction in equilibrium, the species involved in the equilibrium constant expression are For a reaction in equilibrium, the species involved in the equilibrium constant expression are A. gaseous and solid… Read More
Answers Powdered marble reacts faster with hydrochloric acid solution than the granular form because the powdered… Powdered marble reacts faster with hydrochloric acid solution than the granular form because the powdered form has A.… Read More
Answers N2(g) + O2(g) ↔ 2NO(g); ΔH = + 180.6 kJ mol-1 In the reaction above,… N2(g) + O2(g) ↔ 2NO(g); ΔH = + 180.6 kJ mol-1 In the reaction above, increase in temperature… Read More
Answers Given that M is the mass of substance deposited in an electrolysis and Q the… Given that M is the mass of substance deposited in an electrolysis and Q the quantity of electricity… Read More
Answers 0.46g of ethanol when burned raised the temperature of 50g of water by 14.3K. Calculate… 0.46g of ethanol when burned raised the temperature of 50g of water by 14.3K. Calculate the heat of… Read More
Answers MnO(_{4(aq)}) + 8H(^+ _{(aq)}) + Y → Mn(^{2+} _{(aq)}) + 4H(_2)O(_{(l)}) Y in the equation… MnO(_{4(aq)}) + 8H(^+ _{(aq)}) + Y → Mn(^{2+} _{(aq)}) + 4H(_2)O(_{(l)}) Y in the equation above represents A.… Read More
Answers (1/2)Zn2+(aq) + e- → (1/2) Zn(s) In the reaction above, calculate the quantity of electricity… (1/2)Zn2+(aq) + e– → (1/2) Zn(s) In the reaction above, calculate the quantity of electricity required to discharge… Read More
Answers In which order are the following salts sensitive to light? In which order are the following salts sensitive to light? A. Agl > AgCl > AgBr B. AgCl… Read More
Answers The pOH of a solution of 0.25 mol dm-3 of hydrochloric acid is The pOH of a solution of 0.25 mol dm-3 of hydrochloric acid is A. 12.40 B. 13.40 C.… Read More