« previous next »

Author Question: Which element has the symbol Co? A. chlorine B. chromium C. copper D. ... (Read 75 times)

audragclark

  • Hero Member
  • *****
  • Posts: 579
on: Aug 27, 2018
Which element has the symbol Co?
 
  A. chlorine
  B. chromium
  C. copper
  D. cobalt

Question 2

Hydrogen gas is collected over water in an inverted buret. If the atmospheric pressure is 745 mm Hg, the vapor pressure of water is 18 mm Hg, and a 15.0 cm-high column of water remains in the buret, the pressure of the hydrogen gas is
 
  A) 763 mm.
  B) 745 mm Hg.
  C) 727 mm Hg.
  D) less than 727 mm Hg.


succesfull

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

A blood smear. The smear reveals representative cells from each formed element group: red blood cell A blood smear. The smear reveals representative cells from each formed element group: red blood cell
Chevrolet symbol Chevrolet symbol
A Copper Mine in Utah A Copper Mine in Utah
A Human Element Emerges A Human Element Emerges
The two skills of the element Evaluation The two skills of the element Evaluation
Video: Atrophy

For a complete list of videos, visit our video library