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

Author Question: What element was found to be the first superconductor of electricity at 4.2 K in 1911? (Read 60 times)

fox

  • Hero Member
  • *****
  • Posts: 540
on: Feb 15, 2020

Question 1

What is the average oxidation number of Cu in the 1-2-3 superconductor YBa2Cu3O7 if Y is in the +3 oxidation state?
◦ +2.33
◦ +0.67
◦ +2
◦ +4.33

Question 2

What element was found to be the first superconductor of electricity at 4.2 K in 1911?
◦ nickel
◦ mercury
◦ aluminum
◦ gallium
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 fox on Feb 15, 2020

kalskdjl1212

  • Sr. Member
  • ****
  • Posts: 353
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


fox

  • Member
  • Posts: 540
Reply 2 on: Feb 15, 2020
YES! Correct, THANKS for helping me on my review

shewald78

  • Member
  • Posts: 340
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

A jawbone found in the mainland Jenolan Caves A jawbone found in the mainland Jenolan Caves
Sivapithecus is a Miocene ape (middle) with anatomical similarities to orangutans (left) rather than Sivapithecus is a Miocene ape (middle) with anatomical similarities to orangutans (left) rather than
Types of supercoiling found in chromosomes Types of supercoiling found in chromosomes
The carotenoid lycopene, found in tomatoes and tomato products, functions as an antioxidant The carotenoid lycopene, found in tomatoes and tomato products, functions as an antioxidant
Which of the following reactions correctly shows the transmutation of an element by neutron ... Which of the following reactions correctly shows the transmutation of an element by neutron ...
P element–mediated transformation in Drosophila P element–mediated transformation in Drosophila
Video: Graded potentials - electrical characteristics and types

For a complete list of videos, visit our video library