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
nordsb [41]
3 years ago
6

The geological era about which we have the least information is called _____.

Chemistry
2 answers:
snow_lady [41]3 years ago
7 0

Answer:

<u>Hadean</u>

Explanation:

  • This a geologic eon period on earth dating to archean it begins with the formation of the planet about some 4.6 billion years ago. As data of 2016 ICS <u>International commission on Stratigraphy describes its status as "informal". </u>
  • As geologist Preston cloud named this eon in 1972, before the earliest known rock formations on earth. Also called as the Priscoan period" or ancient rock period. Word Hadean also signified the Greek god of the underworld.
  • The geologists believe that a sizeable quantity of water could have been the prime source of earth and that water molecules would have escaped due absence of earth gravity. It also asserted that the parts of the earth might have been disrupted due to the formation of the moon.
iVinArrow [24]3 years ago
4 0
Cretaceous Period.............

You might be interested in
When your muscle gets tired, it builds up the _______ and makes it more powerful.
Nataly [62]
The answer is “D Tissue”


Explanation:

when you workout you tear down your muscles (tissue) and after your done working out your body rebuilds tissue


hope this helps
5 0
2 years ago
5. The Ks for silver chloride is 1.8 x 10-lat
AnnZ [28]

Answer:

bueno

Explanation:

hijonshsjijagha

6 0
3 years ago
According to cell theory, how are bubble algae, or sea pearls, made?
Nat2105 [25]

Answer: Bubble algae are caused by lighting, nutrients and bubble algae spores. The spores were probably on the live rock. The lighting is a side effect of trying to keep photosynthetic corals.

Explanation:

8 0
3 years ago
Calculate the molarity of 0.289 moles of FeC13 dissolved in 120 ml of solution
yanalaym [24]

Answer:

2.41 M

Explanation:

The molarity is the moles of FeCl3 over the liters of solution. Since you're given mL you need to change it to L which is 0.12 L. 0.289 divided by 0.12 is your answer

5 0
3 years ago
25.0 g of barium hydroxide is dissolved in 120.0g of water. What is the morality?
Vinvika [58]
Molarity: M = #moles of solute / liters of solution

# moles = mass / molar mass

Molar mass calculation

Barium hydroxide = Ba (OH)2

Atomic masses
Ba = 137.4 g/mol
O=16 g/mol
H=1 g/mol
Molar mass of Ba (OH)2 = 137.4 g/mol + 2*16g/mol + 2*1 g/mol = 171.4 g/mol

# mol = 25.0g/171.4 g/mol = 0.146 mol

For the volume of water use the fact that the density is 1g/ml., so 120 g = 120 ml = 0,120 liters.

M = 0.146mol / 0.120 liters = 1.22 mol/liter
3 0
3 years ago
Other questions:
  • Which is a chemical property of soda ash
    6·2 answers
  • How many molecules (not moles) of nh3 are produced from 6.89×10−4 g of h2?
    5·1 answer
  • Iron has a density of 7.874 g/cm3 what is the mass of a rectangular block of iron with dimensions of 3.000 cm by 4.000cm by 5000
    8·1 answer
  • What is a compression?
    14·2 answers
  • What element has an atomic mass 4?
    5·2 answers
  • What is meant by "citing a source"?remembering where you found the materialnaming the source of the informationkeeping the note
    7·1 answer
  • El butano, C4H10, se quema en presencia de oxígeno gas, O2, y se produce dióxido de carbono, CO2, y agua. ¿Cuántos kg de CO2 se
    7·1 answer
  • _____ was Isaac Newton’s first contribution to the scientific community.
    7·2 answers
  • 12 *
    10·1 answer
  • What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!