The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is
A. Argon
B. Xenon
C. Helium
D. Krypton
The gases used in different types of welding would include
A. oxygen and hydrogen
B. oxygen, hydrogen, acetylene and nitrogen
C. oxygen, acetylene and argon
D. oxygen and acetylene
The property of a substance to absorb moisture from the air on exposure is called
A. osmosis
B. deliquescence
C. efflorescence
D. desiccation
In which of the following activities silicon carbide is used?
A. Making cement and glass
B. Disinfecting water of ponds
C. cutting very hard substances
D. Making casts for statues
The average salinity of sea water is
A. 3%
B. 3.5%
C. 2.5%
D. 2%
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is A. Argon B. Xenon C. Helium D. Krypton ...” in 📗 Chemistry if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
Hydrophobic molecules (like oil) tend to self-associate in water rather than dissolve. What is the MAJOR energetic contribution to this property.
Answers (2)
Calculate the volume of acetone with the same mass as 15.0 mL of mercury. The density of mercury is 13.59 g/mL. The density of acetone is 0.792 g/mL.
Answers (2)
Energy may not be created or destroyed, but it may be converted into different types. Categorize the examples below as either Potential Energy or Kinetic Energy. Some examples will fall into neither category.
Answers (1)
The formula for rust can be represented by fe2o3 how many moles of fe are present in 25.7 g
Answers (1)
How much heat is absorbed by a 37g iron skillet when its temperature rises from 8oC to 24oC?
Answers (1)
New Questions in Chemistry
What compound will not give oxygen on heating
Answers (1)
Choose one property of water that makes it unique. Describe the property and explain the chemical or physical?
Answers (1)
An object is dropped onto the moon (g m = 5 ft/s 2). how long does it take to fall from an elevation of 250 ft.?
Answers (1)
Which type of luster gives the mineral the appearance of metal?
Answers (1)
Anything that contains only one kind of material?
Answers (1)