This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which is not a characteristic reaction of chromium metal or chromium(II) ion? (Read 24 times)

tth

  • Hero Member
  • *****
  • Posts: 579
on: Feb 15, 2020

Question 1

What chemical equation represents the best method for obtaining pure chromium?
◦ FeCr2O4(s) + 4 C(s) + heat → Fe(s) + 2 Cr(s) + 4 CO(g)
◦ Cr2O3(s) + 2 Al(s) + heat → 2 Cr(s) + Al2O3(s)
◦ Cr2+(aq) + H2(g) → Cr(s) + 2 H+(aq)
◦ Cr2O3(s) + 2 Fe(s) + heat → Fe2O3(s) + 2 Cr(s)

Question 2

Which is not a characteristic reaction of chromium metal or chromium(II) ion?
◦ 4 Cr2+(aq) + O2(g) + 4 H+(aq) → 4 Cr3+(aq) + 2 H2O(l)
◦ Cr(OH)2(s) + OH-(aq) → Cr(OH)3-(aq)
◦ Cr(OH)2(s) + 2 H3O+(aq) → Cr2+(aq) + 4 H2O(l)
◦ Cr(s) + 2 H+(aq) → Cr2+(aq) + H2(g)
Chemistry ¦ McMurry, Fay, Robinson ¦ 7th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by tth on Feb 15, 2020

jaaaaaaa

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Feb 15, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 39% of students answer this correctly


tth

  • Member
  • Posts: 579
Reply 2 on: Feb 15, 2020
Thanks for the timely response, appreciate it

Animal_Goddess

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Hartmann's mountain zebra resting, showing its characteristic essentially unbarred belly Hartmann's mountain zebra resting, showing its characteristic essentially unbarred belly
Methane combustion as an energy–yielding redox reaction. Methane combustion as an energy–yielding redox reaction.
Erythroblastosis fetalis. (a) The condition occurs with an RH+ father and RH– mother. (b) First preg Erythroblastosis fetalis. (a) The condition occurs with an RH+ father and RH– mother. (b) First preg
A peroxidation reaction involving a fatty acid is depicted in the figure below. A peroxidation reaction involving a fatty acid is depicted in the figure below.
Reaction coordinate diagram for a simple enzyme catalyzed reaction Reaction coordinate diagram for a simple enzyme catalyzed reaction
Enthalpic stabilization of the transition state in an enzyme-catalyzed reaction Enthalpic stabilization of the transition state in an enzyme-catalyzed reaction
Video: Amniocentesis and CVS Animation

For a complete list of videos, visit our video library