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
Katen [24]
3 years ago
9

What is the name of the supercontinent that existed 245 million years ago

Chemistry
2 answers:
Mandarinka [93]3 years ago
6 0
I believe it was Pangaea but I could be wrong
prohojiy [21]3 years ago
6 0
The super continent is Pangea
<span />
You might be interested in
What volume of 0.500 M zinc nitrate contains 2.94 g of zinc nitrate?
krek1111 [17]
24518 is the answer to your queston
7 0
3 years ago
What is it called when an egg cell joins a sperm cell?
kykrilka [37]
A baby is formed when an egg and sperm come together
7 0
3 years ago
a 45 gram marble is dropped into a graduated cylinder with 30ml of water. The water level increases to 45.0 ml. What is the dens
Lady bird [3.3K]

Answer:

<h2>3 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}\\

From the question we have

volume = final volume of water - initial volume of water

volume = 45 - 30 = 15 ml

We have

density =  \frac{45}{15}  = 3 \\

We have the final answer as

<h3>3 g/mL</h3>

Hope this helps you

5 0
2 years ago
Can someone answer this thanks guys.
Alja [10]

Explanation:

Percentage Yield = (175/250) * 100% = 70.0%.

5 0
2 years ago
Calculate the sodium ion concentration when 70.0 mL of 3.0
otez555 [7]

Answer:

4.5 M Na+

Explanation:

Multiply the molarity by the volume of the solution to get moles.

Note that there are TWO sodium ions in sodium carbonate, therefore the first-mole calculation must be multiplied by two.

Since molarity is defined as moles of ions/liters of solution, the final molarity will be the sum of the calculated moles divided by the sum of the liters of solution.

Hope this helps :)

7 0
2 years ago
Other questions:
  • Zinc reacts with hydrochloric acid according to the reaction equation Zn ( s ) + 2 HCl ( aq ) ⟶ ZnCl 2 ( aq ) + H 2 ( g ) How ma
    7·1 answer
  • The conversion of co2 and h2o into organic compounds using energy from light is called what?your answer
    14·1 answer
  • What is the most important characteristic in determining an element’s properties?
    11·1 answer
  • A student was given four unknown solutions. Each solution was checked for. conductivity and tested with. phenolphthalein. The re
    15·1 answer
  • Can someone explain how my teacher got that result in acceleration
    5·2 answers
  • PLEASE HELP DUE SOON
    11·1 answer
  • As stars get older, before they collapse, they throw off dust, heavy atoms and other materials an form a new
    5·2 answers
  • Which of these is found in the energy levels of an atom?
    14·1 answer
  • What does the word "kinetic" indicate about
    11·1 answer
  • Which two substances are reactants in the following chemical equation?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!