Questions and answers by

scilover

Questions (25)

Is electroplating an industrial electrochemical process? What would be an industrial electrochemical process??electric generator
1. 1 answer
2. 462 views
If a 0.1 mol/L solution is diluted to 0.01 mol/L, the:a) concentration of hydrogen ions increases b) pH decreases c) acidity
1. 1 answer
2. 793 views
In order to completely neutralize 0.985 mol of sodium hydroxide, 43.2 mL of an acid is required. The concentration of the acid
1. 1 answer
2. 959 views
In the system A(g) + 2B(g)  2C(g) + 2D(g) H=21 kJ/mol, it is possible to increase the quantity of C by:a) adding a
1. 4 answers
2. 2,047 views
A mixture of lead, magnesium, nitrate and chromate ions are present in a solution. What will the precipitate be?a) MgPb b)
1. 1 answer
2. 2,284 views
What happens if sodium acetate (CH3COONa) is added to the following reaction?CH3COOH  H+ + CH3COO- a) [H+] increases b) [H+]
1. 1 answer
2. 2,244 views
0.80 mol/L of A and B are mixed. They react very slowly to produce C and D as follows:A(aq) + B(aq) ⇔ C(aq) + 2D(aq) When
1. 2 answers
2. 1,089 views
Which of the following pairs of compounds will give a precipitate in a diluted solution?Question 4 options: A) Cu(NO3)2 and
1. 1 answer
2. 2,010 views
The concentration of hydroxide ions in a solution of nitric acid 0.2 M is:a. 2 x 10-14 M b. 5 x 10-14 M c. 5 x 10-7 M d. 2 x
1. 2 answers
2. 1,899 views
CaCO3(s) <-> CaO(s) + CO2(g)What would happen if CO2 was removed? Would the reaction shift left? Does that mean CaCO3 increases
1. 1 answer
2. 1,596 views
3Fe(s) + 4H2O(g) <-> Fe3O4(s) + 4H2(g)What happens when Fe(s) is added? Would the reaction shift right?
1. 3 answers
2. 2,568 views
Phosgene (COCl2) is a poisonous gas that dissociates at high temperature into two other poisonous gases, carbon monoxide and
1. 1 answer
2. 1,651 views
.012 mol of solid NaOH is added to a 1 L solution of HCl 0.01 M. What is the pH of the solution?
1. 1 answer
2. 747 views
Which pair of ions will be most likely to react at standard state conditions?a) MnO4- and Sn2+ b) Zn2+ and Cl- c) I- and Cu d)
1. 1 answer
2. 769 views
Which of the following is the strongest reducing agent?a) Li+ b) Zn c) Sn d) H2 Is it Li? Can someone please explain what the
1. 2 answers
2. 1,977 views
Can a solution of CrCl3 be stored in an aluminum container? I did the math part- E= 2.45 (approx)
1. 2 answers
2. 495 views
Which of the following is the strongest reducing agent?a) Li+ b) Zn c) Sn d) H2 Is it Li? Can someone please explain what the
1. 0 answers
2. 442 views
Which one of the following species will react with Sn at standard state conditions?a) S b) Ag+ c) Cu d) Zn2+ What does it mean
1. 1 answer
2. 1,077 views
Which one of the following species will react with Sn at standard state conditions?a) S b) Ag+ c) Cu d) Zn2+
1. 2 answers
2. 710 views
Using the following spontaneous reactions, classify the 3 metals involved (Cr, Sn, Al) according to increasing reductant
1. 1 answer
2. 1,140 views
21. Classify the following solutions in order of increasing pH:a. 0.01 M NaOH b. pure water c. 0.10 M HCl d. 0.05 M NaOH e.
1. 1 answer
2. 733 views
You work with the following system:2X(g) <---> Y(g) At, equilibrium, [Y]=3[X]. If K=10, calculate the [Y] at equilibrium.
1. 2 answers
2. 482 views
A chemical system within a sealed 1 L reaction vessel is described by the following reversible reaction equation:2H2S(g)
1. 2 answers
2. 838 views
You work with the following system:2X(g) <---> Y(g) At, equilibrium, [Y]=3[X]. If K=10, calculate the [Y] at equilibrium.
1. 1 answer
2. 992 views
5.6 x 10-6 mol of A and 5 x 10-5 mol of B are mixed in a 200 mL flask. The system is represented by the equation:2A(G) + B(G)
1. 1 answer
2. 845 views