Toxictaco81991 Toxictaco81991
  • 09-01-2024
  • Chemistry
contestada

What is the percentage of oxygen normally found in air?
Select one:
A. 15.5
B. 21
C. 19.5
D. 18

Respuesta :

Otras preguntas

A bullet train traveling at 275 kilometers per hour. At that rate, how many kilometers will the train travel in 2-1/2 hours
Drag each label to the correct location on the image. Match the presentation topic with the tool that would be most useful.
Examine the following passage on the railway strike of 1894. The numbers in brackets give the sentence numbers. (1) In 1894, workers belonging to the American R
17. Controls given to one branch of government to limit the power of another branch are known as A. Appellate jurisdiction. B. Popular sovereignty. C. Checks an
the function f(x) varies inversely with x and f(x)=1.6 when x=0.5. what is f(x) when x=3.2
Identify the reactant and product in tge following chemical reaction: CH4 + 2O2 ➡ CO2 + 2H2O
Please help, will give Brainliest if you have a good answer.
Solve each system help please!!!!!
How can peer relationships negatively affect social health? A. By encouraging a person to remain inactive B. By lowering a person's self-esteem C. By creating d
what advances in transportation occurred during the Industrial Age
good job