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
IgorC [24]
2 years ago
7

Scientists Discuss time and how old the Earth is. How do they measure the idea

Chemistry
1 answer:
Firdavs [7]2 years ago
4 0

The following is the introduction to a special e-publication called Determining the Age of the Earth (click the link to see a table of contents). Published earlier this year, the collection draws articles from the archives of Scientific American. In the collection, this introduction appears with the title, “Stumbling Toward an Understanding of Geologic Timescales.”

You might be interested in
Explain how to draw the electron-dot diagram for oxygen.
AlexFokin [52]

The electron dot diagram for the oxygen atom shows six electrons around the symbol of the atom.

<h3>What is the electron dot diagram?</h3>

The electron dot diagram is the diagram of atoms of elements showing only the valence electrons present in the atom represented with dots.

The electron dot diagram for the oxygen atom is drawn as follows:

  • The number of valence electrons in oxygen atom is determined; valence electrons = 6
  • The symbol for the oxygen atom is written
  • The valence electrons are shown as dots around the symbol of the element.

In conclusion, the electron dot diagram uses dots around the symbol of an atom to show the valence electrons in the atom.

Learn more about electron dot diagram at: brainly.com/question/5835591

#SPJ1

7 0
1 year ago
Sea water contains roughly 158.0g of Nacl per liter. What is the molarity of sodium chloride in sea water?
IrinaK [193]
Molar mass NaCl = 58.5 g/mol

C = 158.0 g/L

Molarity =  C / molar mass

M = 158.0 / 58.5

M = 2.7000 M

hope this helps!
6 0
3 years ago
A 5.00 L sample of helium expands to 12.0 L at which point the
mina [271]

Answer:

1.73 atm

Explanation:

Given data:

Initial volume of helium = 5.00 L

Final volume of helium = 12.0 L

Final pressure = 0.720 atm

Initial pressure = ?

Solution:

"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"

Mathematical expression:

P₁V₁ = P₂V₂

P₁ = Initial pressure

V₁ = initial volume

P₂ = final pressure

V₂ = final volume  

Now we will put the values in formula,

P₁V₁ = P₂V₂

P₁ × 5.00 L = 0.720 atm × 12.0 L

P₁ = 8.64 atm. L/5 L

P₁ = 1.73 atm

7 0
2 years ago
Due is 10 min please help
Nonamiya [84]

Answer:

its c hope this helped;)

Explanation:

5 0
2 years ago
How can i determin the size of my car
nadya68 [22]

Answer:

ehat the guy above said

Explanation:

4 0
3 years ago
Other questions:
  • 6p, 6q, 6r, and 6s are like terms. true false user: -8 is a term. true false
    13·2 answers
  • Which step of the scientific method will most likely come next? Analyze the data Construct a hypothesis Test with an experiment
    13·1 answer
  • What is measured by the reaction rate?
    13·2 answers
  • When comparing lithium, sodium, and potassium to calcium, strontium, and barium, early chemists noticed that:
    8·1 answer
  • A chemist wishing to do an experiment requiring 47-Ca2+ (half-life = 4.5 days) needs 5.0 μg of the nuclide. What mass of 47-CaCO
    12·1 answer
  • Please help me solve this question. Tell the method too
    9·1 answer
  • P.S. This is a science question not a chemistry.
    9·1 answer
  • Based on Table F, which compound is least soluble in water?
    10·1 answer
  • 63.15 mL of calcium hydroxide is required to titrate 18.9 mL of a 0.200 M H3PO4 solution. What is the molarity of the basic solu
    8·1 answer
  • Breathing equipment used by rescue workers needs to capture the CO2 the humans breath out and produce O2 for them to breath in,
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!