1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alexira [117]
3 years ago
12

Which two chemical elements make up earths atmosphere

Chemistry
1 answer:
Lera25 [3.4K]3 years ago
7 0

Earth's atmosphere is 78% nitrogen, 21% oxygen, 0.9% argon, and 0.03% carbon dioxide with very small percentages of other elements. Our atmosphere also contains water vapor.

hope this helps!

(:

You might be interested in
A book sits motionless on a table. Which statement is true? Group of answer choices There are no forces acting on the book. The
Katena32 [7]

Answer:

The forces acting on the book are balanced by each other.

6 0
2 years ago
As fuel is burned in an airplane, it seems to disappear from the tank, suggesting that matter is destroyed during the reaction.
gregori [183]

Answer:

Well we know that matter is neither created nor destroyed by chemical reactions or physical transformations. It is not destroyed it simply was converted to gas. =D

6 0
3 years ago
How to find thr solute and solvent
olga55 [171]

the solute is the one that dissolves meaning its particles are separating into the solvent, and the solvent is the one that dissolves the other substance.

5 0
3 years ago
Which sub-layer thins out into space, where there is no air
KengaRu [80]
<span>The "exosphere" is the most distant and tenuous "layer" of our atmosphere.</span>
3 0
2 years ago
Read 2 more answers
A reaction was suppose to produce 20 L of gas. Only 12 litters of gas were produced in the lab. What is the percent yield for th
pogonyaev

Answer:

\boxed {\boxed {\sf 60 \%}}

Explanation:

Percent yield is a ratio of the actual yield to the theoretical yield. It is found using this formula:

\% \ yield= \frac {actual \ yield}{theoretical \  yield} *100

The actual yield is 12 liters, because that was actually produced in the lab.

The theoretical yield is 20 liters, because that was the expected yield.

\% \ yield= \frac {12 \ L}{20\ L} *100

\% \ yield= 0.6*100

\% \ yield= 60

For this reaction, the percent yield is 60%.

5 0
3 years ago
Other questions:
  • In your bathroom you leave the faucet dripping. If the faucet leaks 30.0 drops/minute, how much water will you waste after 3.00
    8·1 answer
  • What is the volume of 21.0 g of nitrogen gas at stp?
    15·1 answer
  • Scientists Pam and Alejandro were discussing a liquid found in the science lab that was missing it's label. In classifying the u
    7·1 answer
  • How does an earthquake cause a tsunami?
    11·2 answers
  • Which of these best describes the role of plants in the carbon-oxygen cycle? A. to absorb carbon dioxide from the atmosphere and
    5·2 answers
  • Is sand an element or a compound?
    12·1 answer
  • Where are metals on the table?
    9·1 answer
  • This piece of paper has been tuned into a work of art with many vibrant colors and decorated with multiple shapes, but it is sti
    12·1 answer
  • If the limiting reactant in a chemical reaction is impure, what will happen to the percentage yield of the product?
    5·1 answer
  • <img src="https://tex.z-dn.net/?f=v%3D0.164m%2A8.3cm%2A12.4cm" id="TexFormula1" title="v=0.164m*8.3cm*12.4cm" alt="v=0.164m*8.3c
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!