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
pogonyaev
2 years ago
10

In what eon did single-celled organisms appear?

Chemistry
1 answer:
fomenos2 years ago
4 0
Archean is what I think but there isn’t a clear answer
You might be interested in
Which statement would support a merit of the Bronsted-Lowry base theory has over the Arrhenius base theory?
butalik [34]

Answer:

Explanation:

Bronsted Base is an H+ acceptor

No good answer Bronstead base does not accept hydroxide or electrons

5 0
2 years ago
Read 2 more answers
Examples of electromagnetic wave
dlinn [17]

Answer:

Believe it or not our the light we see "visible light" is an example of electromagnetic wave. other examples include microwaves, radio waves, infrared, ultraviolet, x-rays, and gamma rays.

Explanation:

3 0
3 years ago
The quantity, 1,385 mg is equivalent to in scientific notation
Agata [3.3K]

Answer:

The answer is 1385 x10∧ -3

Explanation:

Scientific notation is a quick way to represent a number using notation in exponential form or powers of base ten.

This notation allows us to express too large or small numbers easily.

<u>For example: </u>

500 is written as 5x10∧2; Where the power 2 represents the number of 0's that follow 5.

0.0093 is written as 9.3x10∧-3; Where the power -3 represents the number of times the comma was moved to the right.

8 0
2 years ago
PLEASE HELP! DUE IN 5 MINUTES! ( 10 points )
max2010maxim [7]

Answer:

C

Explanation:

3 0
3 years ago
Read 2 more answers
A neutral atom of which of the four element has the smallest radius
arsen [322]
Answer:
Element 1

Explanation:
The ionization energy is defined as the energy required to remove electrons from the atoms.
We know that the nucleus of the atom attracts the electrons, thus, bound these electrons to the atom.
This means that as the radius decreases, the force of attraction between the nucleus and the electron will increase, therefore, the energy required to remove the electron would increase (and vice-versa).

Based on the above, the atom with the smallest radius would be the atom with the largest first ionization energy.

Hope this help :)
6 0
3 years ago
Read 2 more answers
Other questions:
  • 1. Which one is the odd one out?<br> 0 CaO<br> o Cu<br> o CO<br> o CH
    5·1 answer
  • Hydrochloric acid and sodium hydroxide will produce which two compounds
    8·1 answer
  • Gaseous butane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 42. g of butane is m
    11·1 answer
  • Question 10 of 10
    11·1 answer
  • How much heat is required to raise the temperature of 18 grams of liquid water by 25 C?
    15·1 answer
  • Help me, I’m bad a science.
    11·1 answer
  • Hydrogen gas is collected over water in an inverted buret. If the atmospheric pressure is 745 mm Hg, the vapor pressure of water
    11·1 answer
  • How many grams of calcium are made up by 2.68 x 1023 atoms?
    5·1 answer
  • Danny is trying to figure out how fast sugar crystals can dissolve in water. He has already tested crystals of table sugar by ju
    5·2 answers
  • The rate constant, k, for a reaction is 0.0354 sec1 at 40°C. Calculate the rate constant for the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!