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
finlep [7]
2 years ago
12

What are the four most important elements on earth?

Chemistry
2 answers:
Hoochie [10]2 years ago
8 0

Answer:

These four atomic elements are oxygen, carbon, hydrogen, and nitrogen.

Explanation:

hope it helps....

vova2212 [387]2 years ago
5 0

Answer:

Nitrogen/Carbon/Oxygen/Hydrogen

Explanation:

I believe those would be the most important because:

Nitrogen - Composing 78% of earths atmosphere.

Carbon - Building blocks for all known life.

Oxygen - We breath it as well as it composes 21% of our atmosphere.

Hydrogen - Makes up a bunch of compounds (like water) that enable humans to live.

You might be interested in
What is the oxidation state of Fe(s)
ad-work [718]

The  oxidation state is zero for Fe (s)

8 0
3 years ago
2A1 +3CL2, → 2AICI3 what is the reaction
DerKrebs [107]

Answer:

redox reaction

Explanation:

8 0
3 years ago
Read 2 more answers
CHEMISTRY HELP PLEASE?!?! WILL MARK BRAINLIEST ANSWER! <br> help a mate out? :((
Zolol [24]
The attachments dont work, they say that they have been taken down or sum... ?
7 0
3 years ago
1 Flower color D. What color are the parents?
timofeeve [1]

Answer:

what is the baby flowers color?

Explanation:

if the baby flower is purple the parents were purple

6 0
2 years ago
Which element most likely has the same number of valence electrons as silicon(si)?
Blizzard [7]

Answer:

Carbon, germanium, tin and lead.

Explanation:

The silicon is belong to the carbon family. There are five elements in carbon family carbon, silicon, germanium, tin and lead. These five elements are present in same group i.e group fourteen. The elements present in same group have same number of valance electrons.

For example.

Carbon electronic configuration:

C₆ = [He]  2s² 2p²

Silicon electronic configuration:

Si₁₄ = [Ne] 3s² 3p²

Germanium electronic configuration:

Ge₃₂ = [Ar] 3d¹⁰ 4s² 4p²

Tin electronic configuration:

Sn₅₀ = [Kr] 4d¹⁰ 5s² 5p²

Lead electronic configuration:

Pb₈₂ = [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p²

we can see that in case of all elements there are four valance electrons, which are equal to the valance electrons of silicon.

7 0
3 years ago
Other questions:
  • Question 1 of 10
    11·2 answers
  • Which of the following substances is non-living and is the smallest part of all matter?
    9·2 answers
  • CHEMISTRY HELP PLEASE ASAP!
    7·1 answer
  • If the condition change such that there are 4 mil at 4 atm and at 270 K, what is the new volume?
    14·1 answer
  • Write a brief desperation for each of newtons three laws
    8·1 answer
  • Suppose three neutrons are released when an atom in a sample of fissionable nuclei undergoes fission. Each of these neutrons has
    10·1 answer
  • A storm that stays longer over coasts is a more dangerous storm. Is this statement true or false?
    8·2 answers
  • PLS THIS IS DUE TODAY HELP ME LOOK AT THE PIC. like i beg you pls.
    6·1 answer
  • True or false and object can not be accelerating if it has constant speed
    7·1 answer
  • Which quantity is held constant for Boyle's law, Gay-Lussac's law, and Charles's law?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!