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
All of the following are conductors of electricity except
olga55 [171]
Rubber it's not a conductor
4 0
3 years ago
What is the asteroid's name?<br> a. Bubbles<br> b. Carl<br> c. Bennu<br> d. Rex
castortr0y [4]

Answer:

I would say Bennu

Explanation:

Hope this was correct! Let me know if i need to correct it please =w=

8 0
3 years ago
Read 2 more answers
What is the volume of an oxygen tank if it contains 12 moles of oxygen at 273 K under 75 kPa?
Zina [86]
Given:
n = 12 moles of oxygen
T = 273 K, temperature
p = 75 kPa, pressure

Use the ideal gas law, given by
pV=nRT \\ or \\  V= \frac{nRT}{p}
where
V = volume
R = 8.3145 J/(mol-K), the gas constant

Therefore,
V= \frac{(12\,mol)(8.3145\, \frac{J}{mol-K} )(273\,K)}{75 \times 10^{3} \, Pa}= 0.3632\,m^{3}

Answer: 0.363 m³
    
5 0
3 years ago
A buffer solution is composed of 7.50 mol of acid and 4.75 mol of the conjugate base. If the pKa of the acid is 4.90 , what is t
Mamont248 [21]

Answer:

The correct answer is: pH= 4.70

Explanation:

We use the <em>Henderson-Hasselbach equation</em> in order to calculate the pH of a buffer solution:

pH= pKa + log   \frac{ [conjugate base]}{[acid]}

Given:

pKa= 4.90

[conjugate base]= 4.75 mol

[acid]= 7.50 mol

We calculate pH as follows:

pH = 4.90 + log (4.75 mol/7.50 mol) = 4.90 + (-0.20) = 4.70

7 0
2 years ago
Why are alkalis sometimes<br> described as the opposite of<br> acids?
zlopas [31]

Answer: Because Alkalis are bases that can dissolve in water, which can also neutralize acid.

7 0
3 years ago
Other questions:
  • At a certain temperature this reaction follows second-order kinetics with a rate constant of 0.118 M^-1* s^-1:
    13·1 answer
  • N a 3 P O 4 (aq)+L i 2 S O 4 (aq)→ Express your answer as a chemical equation. Enter NOREACTION if no reaction occurs. Identify
    10·1 answer
  • Select the correct answer from each drop-down menu.
    11·1 answer
  • Cavendish’s name for hydrogen gas was "inflammable air." The word inflammable means "to burn. "Why did Cavendish use this name?
    15·2 answers
  • A sample of a gas originally at 29 °c and 1.25 atm pressure in a 3.0 l container is allowed to contract until the volume is 2.2
    8·1 answer
  • Find the difference 18/19 - 17/19<br> A. 2/19<br> B. 8/19<br> C. 1/19<br> D. 9/19
    10·1 answer
  • Atoms of metals tend to1) lose electrons and form negative ions2) lose electrons and form positive ions3) gain electrons and for
    13·1 answer
  • Si tengo 3 gramos de hidrógeno y 6 de oxígeno.¿ cuánta agua conseguiré?
    7·1 answer
  • Please help!
    15·1 answer
  • Identify the type of reaction<br> CaCl2 + AgNO3 --&gt; AgCl + Ca(NO3)2
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!