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
klasskru [66]
3 years ago
14

how do we know that all the continents were all together at one point in time. writing prompt and it has to be at least 7 senten

ces ​
Chemistry
1 answer:
kari74 [83]3 years ago
5 0

Answer:

We can tell by how the continents look. Scientists who propose the pangea theory have said this. You can see for yourself because all the continents look like puzzle pieces you could put together. Scientists can also tell from the species. For example, let's say a scientist found a bone of a creature at the edge of a continent, the edge of another would have the same species. They have also calculated that the continents in itself are still splitting apart, but very slowly. The reason they split up was because tectonic plate movements.

You might be interested in
Hydrogen and helium in the universe were formed by which of these phenomena?
baherus [9]
I think the answer is a
5 0
3 years ago
Write the complete electron configuration of germanium, element 32
Ghella [55]

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p2, valence shell: 4s2 3d10 4p2

6 0
3 years ago
To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 3.6-L bulb, then filled
aleksandrvk [35]

Answer:

The gas was N₂

Explanation:

V = 3.6L

P = 2.0 atm

T = 24.0°C = 297K

R = 0.0821 L.atm/K.mol

m = 8.3g

M = molar mass = ?

Using ideal gas equation;

PV = nRT

n = no. Of moles = mass / molar mass

n = m/M

PV = m/M * RT

M = mRT / PV

M = (8.3*0.0821*297) / (2.0*3.6)

M = 28.10

Since X is a diatomic molecule

M = 28.10 / 2 = 14.05 g/mol

M = Nitrogen

X = N₂

5 0
3 years ago
Specific heat of Fe=0.473 J/g degree C; specific hear of Pb= 0.0305 J/g degree Celcius. To raise the temperature of 1.0 g of the
enot [183]
B. Fe requires more energy than does Pb.
8 0
3 years ago
Will give 99 pts!!! Describe in detail what you know about the enthalpy, entropy, and free energy changes when a sample of gas c
Nimfa-mama [501]
The enthalpy energy in condensation process is negative because it releases energy
The entropy in  will also decreases .
Temperature affected this change because it will now create free energy if added with this result this is the condestion process
7 0
3 years ago
Read 2 more answers
Other questions:
  • What happens as blood passes through the capillaries in the small intestine
    10·2 answers
  • How many atoms are in 4 Al2(SO3)3
    15·1 answer
  • Why are all organs are in the alimentary canal important in digesting food
    9·1 answer
  • A small pebble breaks off of a huge boulder. Th e pebble has the same density
    6·2 answers
  • Of the following gases, ______ will have the greatest rate of effusion at a given temperature.A) NH3B) CH4C) ArD) HBrE) HCl
    9·1 answer
  • Determine if each statement below is True or False regarding Arrhenius and Br∅nsted-Lowry definitions for acids and bases.
    7·1 answer
  • Which correctly describes the location and charge of the electrons in an atom
    7·1 answer
  • ANSWER ASAP!<br> How does a combustion reaction form?
    13·2 answers
  • Which two energy sources were used the most in California in 2016? How do these sources compare to ther sources
    6·1 answer
  • What is science explain​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!