W, X, Y and Z are four different metals commonly found in school laboratory. The table below lists the results of two experiments carried out using the metals or their oxides. Experiment Addition of metal no observable to iron(II) nitrate change solution Action of heat on oxide of metal W X Y formation of a colourless gas and change a clear solution no observable |change no observable formation of silvery grey coating on Z no observable change no observable change formation of Igreyish residue (a) Which is the least reactive metal? Explain briefly. (b) Explain why a colourless gas is formed when metal X is added to iron(II) nitrate solution. Write a chemical equation, including state symbols, for the reaction involved. (c) Name the type of reaction that takes place when metal Z is added to iron(II) nitrate solution. (d) What is the most suitable method for extracting metal W from its oxide ore? Write an equation for the reaction involved, assuming that the formula of the oxide of W is WO. (e) Arrange the four given metals, as well as iron, in descending order of reactivity. 2.

W, X, Y and Z are four different metals commonly found in school laboratory. The table below lists the results of two experiments carried out using the metals or their oxides. Experiment Addition of metal no observable to iron(II) nitrate change solution Action of heat on oxide of metal W X Y formation of a colourless gas and change a clear solution no observable |change no observable formation of silvery grey coating on Z no observable change no observable change formation of Igreyish residue (a) Which is the least reactive metal? Explain briefly. (b) Explain why a colourless gas is formed when metal X is added to iron(II) nitrate solution. Write a chemical equation, including state symbols, for the reaction involved. (c) Name the type of reaction that takes place when metal Z is added to iron(II) nitrate solution. (d) What is the most suitable method for extracting metal W from its oxide ore? Write an equation for the reaction involved, assuming that the formula of the oxide of W is WO. (e) Arrange the four given metals, as well as iron, in descending order of reactivity. 2.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Use the appropriate values of Ksp and Kf from the table below to find the equilibrium constant for the reaction Express your answer to two significant figures. Keq= = VG ΑΣΦ 1.47.10⁹ CuS(s) + 4CN- (aq) = Cu(CN)4²¯ (aq) + S²- (aq) Ka (HS) 1 x 10-19 K₂ (HCN) 4.9 × 10-10 Ksp (Cus) 1.27 × 10-36 Kt([Cu(CN)6]4) 1 x 1025 Kf ([Cu(CN)4]²) 3 x 1018 Submit Previous Answers Request Answer X Incorrect; Try Again; 11 attempts remaining ovide Feedback 2- ?
The Ksp values of silver chromate Ag2Cro4 and silver iodate Ag(IO3) are given below. Ag2Cro4 Ag(IO3) 1.12 x 1012 3.17 x 10°8 Ksp Based on these Ksp values, which of the following is true? In the solution consisting of 1.00 x10-4 M Ag* and 5.00 x10-5 M Cro42", Ag2Cro4 precipitate will form. In the solution consisting of 1.0 x10-4 MAg* and 1.0 x10-4 M I03", Ag(IO3) precipitate will form. In pure water, the solubility of Ag2CrO4 is lower than the solubility of Ag(IO3). In the solution consisting of 0.200 M CrO42- and 0.200 M 103', Ag2(CrO4) will precipitate first if we add Ag* ions gradually into the above mixture.
17:29 Sun May 2 Done
(d) The л/A behaviour for stearic acid (solid line) and oleic acid (dotted line) are shown below. Account clearly for the difference in behaviour for the two surface active materials. 60 50 40 Surface pressure 30 (mN/m) 20 10 0 0.1 0.2 0.3 0.4 area per molecule (nm²) 0.5 0.6 [7 marks]
Help on these two plz
d. -339 J mol-1 K-1 e. 339 J mol-1 K-1 Balance the equation below for the reaction under acidic aqueous conditions. Cr20 (aq) + aq) Cr3+ 12(5) (aq) What is the coefficient for the Cr* ions? Select one: C. d. 9. e. 7 Consider the following equilibrium reaction: K = 5.0 x 10-7 H2CO3 (aq) H* (aq) + HCO3 (aq);
Show work
Using the AG° values in the table below, calculate the AG; for CaCO3. Са (8) + 3/2 О2 (9) + С (graphite) > СаСОз (s) AG° = ? kJ/mol Reaction AG°, kJ/mol С (graphite) + O2 (9) —+ СО? (9) -394.4 2Ca (s)+ O2 (9) → 2CaO (s) -1206.6 CACO3 (s) → CaO (s)+ CO2 (9) 131.4
Calculate the molar solubility of Zn(OH)2 in a solution of 0.0167 M K₂SO4.
questions 2, 3, 4 and 5
AgNazt Cu-Agt_Cu[(103)2 Acidic Solution
help me with those please