This topic contains a solution. Click here to go to the answer

Author Question: The electrolysis of water breaks up the water molecules into hydrogen and oxygen, as shown in this ... (Read 107 times)

mspears3

  • Hero Member
  • *****
  • Posts: 586
The electrolysis of water breaks up the water molecules into hydrogen and oxygen, as shown in this photo. Why is the volume of the hydrogen that is collected twice the volume of the oxygen collected?
 a. Hydrogen atoms are twice as big as oxygen atoms.
  b. There are twice as many hydrogen atoms in water as there are oxygen atoms.
  c. Oxygen atoms are 16 times as massive as hydrogen atoms.
  d. A gas formed from oxygen gas particles takes up twice as much space as a gas formed from the same number of hydrogen gas particles under identical conditions.
  e. The hydrogen occurs as H2 molecules of two atoms each while the oxygen is just single O atoms.

Question 2

Which of these is NOT true about the early Arab practice of alchemy?
 a. Alchemists were looking for the secrets of eternal life and how to turn inexpensive materials into gold.
  b. Alchemists were early experimental scientists and observers.
  c. Alchemy was pseudoscience, rather than involving any form of research.
  d. Alchemists were important predecessors of modern chemists.
  e. Alchemists studied materials and how they changed.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

AaaA

  • Sr. Member
  • ****
  • Posts: 339
Answer to Question 1

b

Answer to Question 2

c




mspears3

  • Member
  • Posts: 586
Reply 2 on: Jul 28, 2018
Excellent


miss.ashley

  • Member
  • Posts: 371
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

For a complete list of videos, visit our video library