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
Juli2301 [7.4K]
3 years ago
15

When scientists looked at the polarity of bands of rock on either side of the mid-ocean ridges, what did they find? A. that ther

e was no pattern B. that the patterns were different C. that the polarities were at right angles D. that the patterns of polarity matched up on both sides
Chemistry
2 answers:
storchak [24]3 years ago
8 0

Answer:

B. that the patterns were different

Explanation:

  • When the scientist looked at the oceanic ridges at the surface they found on either side were the polarity of bands of rocks as on either side of the oceanic ridges where the positive and negative anomalies.  
  • Being composed of hard and soft rocks, these tend to have been in strips of black and white bands or rocks aligned due to the upwelling of new lava on the sides of the ridges throughout the evolutionary history of the planet.
  • Polarities have also been documented to have been aligned in coordination with earth magnetic poles, Being basaltic these rocks have varying ages as older rocks are found away from the mid-oceanic ridges due to the impact of spreading out of lava or magma.
alisha [4.7K]3 years ago
3 0
I am pretty sure the answer is D. That the patterns of a polarity matched up on both sides.
You might be interested in
How many grams do 6.534e+24 molecules of phosphoric acid weigh?
fredd [130]

Answer:

1,063 grams H₃PO₄

Explanation:

To find the mass of phosphoric acid (H₃PO₄), you should (1) convert molecules to moles (via Avogadro's number) and then (2) convert moles to grams (via molar mass from periodic table).

Molar Mass (H₃PO₄): 3(1.008 g/mol) + 30.974 g/mol + 4(15.998 g/mol)

Molar Mas (H₃PO₄): 97.99 g/mol

6.534 x 10²⁴ molecules H₃PO₄                       1 mole                         97.99 g
---------------------------------------------  x  -------------------------------------  x  --------------
                                                            6.022 x 10²³ molecules          1 mole

= 1,063 grams H₃PO₄

3 0
1 year ago
What is the easiest way to explain molecular compounds and covalent bonds also adding information about valance electrons?
wlad13 [49]

Answer:

Molecular compounds consist of two or more nonmetals. The nonmetals that make up a molecular compound are held together by covalent/molecular bonds. Covalent bonds is known as the "sharing" of valence electrons between two or more chemical species. Valence electrons are shared so that the atoms of the compound can become stable, much like how ionic bonds transfer valence electrons between atoms to achieve stability.

5 0
3 years ago
I need help with problem 103 all of the questions.
AfilCa [17]
A. is decomposition so HCL = H2 + Cl2

not balanced cause hcl needs 2

2HCL = H2 + Cl2

balanced

b. Br2 + Al-i = AlBr3 + I2 single rep.

not balanced since br need 3 so watch carefully cause many changes needed


 3Br2 + Al-i = AlBr3 + I2 not right is unbalanced so make it 2

3Br2 + Al-i = 2AlBr3 + I2 now left Al is unbal. so make 2 there

3Br2 + 2Ali = 2AlBr3 + I2 

Balanced

C. Na + S = Na2S synthesis reaction is not bal. left Na needs 2

2Na + S = Na2S  balanced.

4 0
3 years ago
Explain with example, why there cannot be an oxidation reaction without a corresponding reduction reaction
Vlada [557]
Because matter cannot be created or destroyed
8 0
3 years ago
Read 2 more answers
Match each definition to the vocabulary word
SVEN [57.7K]

Answer:

Answer is given below:

Explanation:

The way it is made (3) Structure.

The basic unit of life (7) Cell.

Perform the different functions of cell (7) Organelles.

No nucleus and unicellular (1) Prokaryote.

Composed of many cells (6) Tissue.

Concluded that all animals are made of cells (10) Theodore schwann .

Contains the genetic information (2) Nucleus.

Concluded that all plants are made up of cells (9) Matthias Schleilden.

Concluded that all cell came from pre existing cells (10) Rudolf Virchow.

Has a nucleus and some are unicellular, but mostly

multicellular (4) Eukaryote

5 0
3 years ago
Other questions:
  • An isomer with a branched structure will require:
    14·1 answer
  • What kind of bond is pictured in the diagram to the left? Describe the movement of the valence electrons in the bond above? (Hin
    8·1 answer
  • How would the pH value of an aqueous solution change, when the hydronium ion concentration is increased by a factor of 10?
    5·1 answer
  • Which of the following molecules is nonpolar?
    11·1 answer
  • Mary wanted to determine which type of fertilizer would help her plants grow taller. She got 16 plant pots andd scooped 2 cups o
    8·1 answer
  • What bond forms from an unequal sharing of electrons between atoms in a molecule? a nonpolar covalent bond a hydrophobic interac
    14·1 answer
  • In a college of exactly 2940 students, exactly 60 % are male. What is the number of female students?
    7·2 answers
  • Which statement accurately describes non renewable energy sources ?
    8·2 answers
  • 8.5 g of rubidium are reacted completely with water.
    6·1 answer
  • Create a comic strip that follows the journey of energy from the sun as it travels through the humpback whale
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!