yclater yclater

28-07-2017
Chemistry

contestada

25. Which of the following is represented in the highest percentage by volume in dry air? A. Carbon dioxide B. Hydrogen C. Nitrogen D. Oxygen

Respuesta :

Erudite1 Erudite1

16-08-2017

The correct option is C. Nitrogen gas has the highest percentage by volume of all the gases that make up the air.
The composition of the air is as follows:
nitrogen = 78.09%
Oxygen = 20.95%
Argon = 0.93%
Carbon dioxide = 0.04%
water vapour = traces amount.

Answer Link

Otras preguntas

When we often interrupt a person who's speaking to us were likely to give the impression that?

A soccer team wins 65% of its matches, and 15% of its matches end in a draw. If the team is scheduled to play 20 matches, about how many matches is it expected

What is x equal to? 16x^2 - 25 = 0

Which particle in the atom has the smallest mass? electron proton neutron photon

The Bureau of Alcohol, Tobacco and Firearms is an example what level of police force? A. national B. state C. county D. city

Who is the commander in chief of the armed forces? A. Army Chief of Staff B. President of the United States C. President pro tem D. Secretary of Defense

A conference committee, which is made up of members of both houses, meets when the president has vetoed a bill?

The Mendes family bought a new house 6 years ago for $104,000. The house is now worth $177,000. Assuming a steady rate of growth, what was the yearly rate of ap

Simplify the following expression, if you can see the picture the expression is as follows:√40 - √10 +√90⇒

What is x equal to? 16x^2 - 25 = 0