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
Leya [2.2K]
3 years ago
14

When did the mass extinctions happen

Chemistry
1 answer:
Alisiya [41]3 years ago
4 0
Out of the five major mass extinction, one is Cretaceous-Tertiary extinction (K-T extinction). It happened 66 million years ago marked by the end of the Cretinous period.
You might be interested in
What property of ocean water affects climate the most?
weeeeeb [17]
C it's heat capacity
6 0
2 years ago
Read 2 more answers
What is the atomic number of an ion with 5 protons, 6 neutrons, and a charge of 3?
Vedmedyk [2.9K]

5 is the atomic number, 11 is the atomic mass and boron is the element
7 0
3 years ago
What does converse mean
Xelga [282]

Answer:

engage in conversation.

Explanation:

8 0
3 years ago
you have been given 250.0 mL of an aqueous solution containing 18.7grams of AgNO3. What is the molarity of solution?
Reil [10]

Hey there!:

Molar mass AgNO3 = 169.87 g/mol

Number of moles:

moles of solution = mass of solute / molar mass

moles of solution = 18.7 / 169.87

moles of solution = 0.110084 moles of AgNO3

Volume in liters:

250.0 mL / 1000 => 0.25 L

Therefore:

Molarity = moles of solution / Volume of solution ( L )

Molarity = 0.110084 / 0.25

=> 0.440 M

Hope that helps!

8 0
3 years ago
When Arti kicks a football, two forces interact. Arti's foot exerts a force of 5N on the ball. What size force will be exerted o
Papessa [141]

A size force of 5N will be exerted on Artl's foot.

This is because Newton's third law of motion, where in which an action occurs, a reaction will occur with the same amount of force, but reversed towards the direction of the area where the action occurred.

8 0
3 years ago
Other questions:
  • The energy in eV for light with a wavelength of 6250 angstroms is _. Note - there are 1.6 x 10-12 erg in 1 eV.
    13·1 answer
  • How does precipitation grow by ice processes
    14·1 answer
  • Before Mendeleev published his periodic table, Döbereiner grouped elements with similar properties into "triads," in which the u
    6·1 answer
  • You mix 5.25 moles of A with 7 moles of B in the chemical equation 3A + 4B 2C + 3D. Which statement is true about the reactants?
    13·2 answers
  • Calculate the molarity 20ml of 3.5 m kci in to a final volume of 100 ml​
    9·1 answer
  • In a particle accelerator, the accelerated particle primarily gains what?
    5·1 answer
  • How many dm³ of hydrogen,measured at s.t.p.,would be needed to reduce 47.7g of copper(II) oxide to copper?
    5·1 answer
  • How many electrons would make the d shell complete?
    6·1 answer
  • How many moles are in 8.63 x 103 atoms of Li?
    9·1 answer
  • Q1 - How would you balance the following equation: N₂ + O₂ N₂O₅
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!