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
morpeh [17]
3 years ago
14

The theory of plate tectonics was, at first, rejected by most scientists. Now most geologists accept that tectonic plates exist

and that these tectonic plates can and do move. What is responsible for the change in how scientists think about plate tectonics?
Chemistry
2 answers:
netineya [11]3 years ago
8 0

Answer:

The validation of seafloor spreading in the 1950s and 60s

Alenkasestr [34]3 years ago
4 0

Answer:

The validation of seafloor spreading in the 1950s and 60s

Explanation:

The theory of seafloor spreading was supported by numerous evidence including thermal probes that showed that heat flow over the mid-ocean ridges measured up to four times those measured in general bottom sediments, which are taken as due to the presence of molten Earth material close to the ridge crest

The ridge crest also show signs unusually seismic wave velocities that are considered to be due to microfracturing and thermal expansion from upwelling magma

You might be interested in
The reaction of methane with water to form carbon dioxide and hydrogen is nonspontaneous at 298 K. At what temperature will this
KIM [24]

Answer:

The system makes the transition from nonspontaneous to spontaneous at a temperature of 954.7 K.

Under 954.7 K the reaction is nonspontaneous; more than 954.7 K is the reaction spontaneous.

Explanation:

CH4(g) + 2H2O(g) ⇆ CO2(g) + 4H2(g)

CH4(g) H2O(g) CO2(g) H2(g) ΔH°f (kJ/mol): –74.87 –241.8 –393.5 0

ΔG°f (kJ/mol): –50.81 –228.6 –394.4 0

S°(J/K·mol): 186.1 188.8 213.7 130.7

ΔG<0 to be spontaneous

ΔG = ΔH- TΔS <0

ΔH = ∑nΔH(products) - ∑nΔH(reactant)

ΔH = (-393.5) - (–74.87 + 2*–241.8)

ΔH = 164.97 kJ = 164970 J

ΔS = ∑nΔS(products) - ∑nΔS(reactant)

ΔS = (213.7 + 4*130.7) - (186.1 + 2*188.8)

ΔS = 172.8 J

0 > 164970 J - T* 172.8 J

-164970 J > - T* 172.8 J

954.7< T

The system makes the transition from nonspontaneous to spontaneous at a temperature of 954.7 K.

Under 954.7 K the reaction is nonspontaneous; more than 954.7 K is the reaction spontaneous.

8 0
3 years ago
Describe the direction in which each object will accelerate. If the object won’t accelerate, write “no acceleration.” Explain wh
Stels [109]

Answer:

unbalanced force

Explanation:

4 0
3 years ago
Please help
professor190 [17]

Answer:

I don't know if this is right but try it. The amount of water vapor in the air is called absolute humidity. The amount of water vapor in the air as compared with the amount of water that the air could hold is called relative humidity. This amount of space in air that can hold water changes depending on the temperature and pressure.

6 0
3 years ago
Which of the following would have the highest buffer capacity?
Mrrafil [7]

Answer:

1.25 M HCO₃⁻ / 1.25 M CO₃²⁻

Explanation:

Buffer capacity refers to the amount of a strong acid or base required per liter of the buffer to change its pH by one. This amount is directly related to the concentration of the conjugate acid-base pair in the buffer since the buffer pair neutralizes the strong acid or base.

Thus, the highest buffer capacity is found in the solution that has the highest concentration of the conjugate acid-base pair, which is 1.25 M HCO₃⁻ / 1.25 M CO₃²⁻ .

7 0
3 years ago
The science of molecules and and their is called chemistry
GarryVolchara [31]
Is this supposed to be a question?????
6 0
3 years ago
Read 2 more answers
Other questions:
  • What are the reactants in the following chemical equation: Zn + CuSO4 -----&gt; ZnSO4 + Cu
    6·1 answer
  • What is the mass of an object if the density is 7.85g/l and the volume is 41.25ml
    8·1 answer
  • Which functional group is found in an ester?
    6·2 answers
  • What electron transition represents a gain of energy?
    14·1 answer
  • Earth has several ideal features which enable it to support life. MOST important is the
    6·2 answers
  • Helpppp me pleaseeee asaaap
    7·1 answer
  • If the empirical formula of an organic compound is CH20, then the molecular mass of the compound could be
    6·1 answer
  • What is forensic science?
    9·1 answer
  • 4. The elements calcium and strontium have similar chemical properties because they both have the same
    8·2 answers
  • How many of each element would you find in AI(NO3)3?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!