
(a)
Interpretation:
The balanced equation for the reaction of treatment of finely divided gold with CN-(aq) in the presence of O2 (g) should be written.
Concept introduction:
The balanced chemical equation can be written by following a few steps:
Step 1: Writing the correct skeleton and molecular formula for the element or molecules on either side of the equation.
Step 2: Counting the
Step 3: Balancing the number of that atom or group on either side which has large atoms in number.
Step 4: Using the correct coefficients to balance the number of atoms on both sides.
(b)
Interpretation:
The balanced equation for the reaction of treatment of finely divided zinc metal with solution formed in part (a) should be written.
Concept introduction:
The balanced chemical equation can be written by following a few steps:
Step 1: Writing the correct skeleton and molecular formula for the element or molecules on either side of the equation.
Step 2: Counting the number of atoms of each element on either side of the equation.
Step 3: Balancing the number of that atom or group on either side which has large atoms in number.
Step 4: Using the correct coefficients to balance the number of atoms on both sides.

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Chapter 20 Solutions
CHEMISTRY:PRIN.+REACTIONS-OWLV2 ACCESS
- Pls help.arrow_forwardPls help.arrow_forward16) A 2.0 L flask containing 2.0 x 10-3 mol H2(g), 3.0 x 10-3 mol Cl2(g), and 4.0 x 10-3 mol HCl(g) at equilibrium. This system is represented by the following chemical equation: H2 (g) + Cl2 (g) → 2HCl(g) Calculate the equilibrium constant for this reaction.arrow_forward
- 7) The pH of a 0.05M solution of HCl(aq) at 25°C is a. 1.3 b. 2.3 c. 3.3 d. 12.7arrow_forward11) The Ksp expression for copper (II) sulfate is: a. [Cu2+][SO4²¯] b. [Cu²+]² [SO4²]² c. [Cu²+]²[SO4²] d. [CuSO4] 12) Which of the following is true about a chemical system in equilibrium? a. All chemical reactions have stopped b. The concentration of reactants is equal to the concertation of products c. The forward and reverse reaction rates become equal d. The system will remain at equilibrium regardless of any external factorsarrow_forward21) Explain the difference between the rate of a reaction and the extent of a reaction. Why are both of these concepts important, if you are a chemical engineer that is trying to develop a process to produce a large volume of a specific type of chemical compound?arrow_forward
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning
