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
Vikentia [17]
3 years ago
14

Which highly reactive gas was probably absent from the Earth's primitive atmosphere? O2 (oxygen gas) water vapor methane carbon

dioxide
Chemistry
1 answer:
rosijanka [135]3 years ago
6 0
Oxygen gas was most likely absent from Earth's primitive atmosphere.  The current theory is that the Earth's early atmosphere was composed of mainly carbon dioxide and methane due to the high volcanic activity.  Cyanobacteria and their use of photosynthesis was what caused earth's atmosphere to become oxygen enriched.
I hope that helps.
You might be interested in
When the equation H202 + H2O + O2 is completely balanced, the SUM of all the coefficients will be
Leviafan [203]
Answer: 1. 5
2H202 -> 2H2O + O2 ; 2 + 2 +1 = 5
7 0
3 years ago
The end result of ecological succession is called?
skad [1K]
Climax community is the answer i believe
4 0
3 years ago
Help, 8th grade Science
valentinak56 [21]

Answer:

Control container

Explanation:

5 0
3 years ago
Read 2 more answers
Porque as vezes nos da borboletas no estomago?
nexus9112 [7]

Answer:

No haces literalmente, pero metepóricamente, su forma de hablar, lo que significa que tienes un sentimiento no argumental hacia algunos. La resonancia detrás de esto es que algunas personas pueden encontrar atractiva a una persona concreta o tener una buena personalidad, así que comienzas a asimilar esos sentimientos.

Explanation:

8 0
3 years ago
How do two sublevels of the same principal energy level differ from each other?
dem82 [27]

Two sublevels of the same principal energy level differ from each other through shape and size.

There are mainly 4 energy level s, p, d and f.

The s level has one orbital and one orbital have two electrons. So the maximum number of electron in s sublevel is 2.

The p level has three orbital and one orbital have two electrons. So the maximum number of electron in s sublevel is 6.

The d level has five orbital and one orbital have two electrons. So the maximum number of electron in s sublevel is 10.

The f level has 7 orbital and one orbital have two electrons. So the maximum number of electron in s sublevel is 14.

They may be differ in magnetic level.

Thus, we concluded that Two sublevels of the same principal energy level differ from each other through shape and size.

learn more about energy level:

brainly.com/question/14654539

#SPJ13

3 0
1 year ago
Other questions:
  • How are temperature and heat related
    6·1 answer
  • How do you know in a ionisation energy graph that sodium increases, magnesium increases and what elements decreases?​
    5·1 answer
  • Which explains one reason evaporation can be used to separate a mixture?
    12·1 answer
  • What allows electricity to be conducted when dissolved in water
    13·1 answer
  • How many moles of water would be produced from 3 moles of oxygen in the following reaction? Don’t forget to include units in you
    12·1 answer
  • Determine the number of miles of C in each sample​
    15·1 answer
  • How does energy from the Sun drive the cycling of matter?
    9·1 answer
  • Balance the following reaction. A coefficient of "1" is understood. Choose the option "blank" for the correct answer if the coef
    12·2 answers
  • 4. Why does the metallic character of the alkaline earth metals increase as you go down the
    14·1 answer
  • Data that is collected that is mostly numbers?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!