Seudónimo
Seudónimo
30-04-2022
Chemistry
contestada
What is the percentage of oxygen in air?
Respuesta :
helahqaderi1234
helahqaderi1234
30-04-2022
21% becuase air is mostly gas.
It’s a mixture of different gases. The air in Earth’s atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.
Answer Link
VER TODAS LAS RESPUESTAS ( 27+ )
Otras preguntas
Must a function that is decreasing over a given interval always be negative over that same interval? Explain.
The binomial (y − 2) is a factor of y2 − 10y + 16. What is the other factor? (y − 5) (y + 5) (y − 8) (y + 8)
Create a list of lists, named hamsplits, such that hamsplits[i] is a list of all the words in the i-th sentence of the text. The sentences should be stored in t
Classification of igneous, sedimentary and metamorphic rocks is based on A)Mineral assemblages and composition assemblages and composition B)Appearance of the r
ionic bonds show which characteristics that arent seen in covalent bonds
d. What are the reasons for the development of most of the old human civilizations on the banks of rivers?
according to a salad recipe each serving requires 4 teaspoons of vegetable oil and 12 teaspoons of vinegar. if 14 teaspoons of vegetable oil were used how many
log2 1 is defined True False
After talking with the patient, Dr. Penningworth has approved the request for one refill. What is Susan’s next step?
I need help with this asap!!!!
