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
luda_lava [24]
3 years ago
12

In Chile, the deepest earthquake occurred at 61.7°W longitude at a depth of 540 km. If the rocks at the focus began subducting 1

0 million years ago and are now 1000 km from their original position, what is the average rate of subduction in cm/yr?
Chemistry
1 answer:
victus00 [196]3 years ago
5 0

The correct answer is - 1 cm/yr.

Alongside the western coast of South America, the Nazca plate and the South American plate are in a collision for several million years now, with the Nazca plate being the one that is subducting in this convergent plate boundary.

If the Nazca plate's focus has moved 1,000 km in the last 10 million years, than in order to get to the annual movement of the subduction we need to convert the km into cm first:

1 km = 10,000 cm

1,000 x 10,000 = 10,000,000

1,000 km = 10,000,000 cm

Than we need to divide the number of cm with the number of years:

10,000,000 / 10,000,000 = 1

And we get the result of 1 cm/yr.

You might be interested in
If a chlorine atom gains or loses a valence electron, it becomes a charged particle called a/an ___ A. Flourine B. Chloride atom
Triss [41]

option c is the answer

ROCK ON DUDE

8 0
3 years ago
Read 2 more answers
Can anyone explain oxidation, and reduction reactions of:
____ [38]

Answer:

Reduction of Aldehydes and Ketones. Hydride reacts with the carbonyl group, C=O, in aldehydes or ketones to give alcohols. ... Reduction of ketones gives secondary alcohols. The acidic work-up converts an intermediate metal alkoxide salt into the desired alcohol via a simple acid base reaction.

The carbon atom of a carboxyl group is in a relatively high oxidation state. Diborane, B2H6, reduces the carboxyl group in a similar fashion. ... Sodium borohydride, NaBH4, does not reduce carboxylic acids; however, hydrogen gas is liberated and salts of the acid are formed.

Primary alcohols can be oxidized to form aldehydes and carboxylic acids; secondary alcohols can be oxidized to give ketones. Tertiary alcohols, in contrast, cannot be oxidized without breaking the molecule's C–C bonds.

A secondary alcohol can be oxidised into a ketone using acidified potassium dichromate and heating under reflux. The orange-red dichromate ion, Cr2O72−, is reduced to the green Cr3+ ion. This reaction was once used in an alcohol breath test.

hope it will help u

4 0
3 years ago
What are the three components of soil texture? <br><br> Hurry please help!
tiny-mole [99]

Answer: sand, silt, and clay.

5 0
3 years ago
What bonds of the reactants are broken in this reaction? What bonds are formed in the product?
Y_Kistochka [10]
<span>Bonds of reactants are broken and create new bonds to form different products and produces exothermic and endothermic reactions.
You are able to see a chemical reaction occur through a few signs
hope this helps

</span>
7 0
3 years ago
A sample of the compound magnesium oxide is synthesized as follows. 60. g of magnesium is burned and produces 100. g of magnesiu
Inga [223]

Answer:

30 g of magnesium would be combined with 20 g of oxygen. The law used solving this problem is the Lavoisier Law of conservation of mass.

Explanation:

If 60 g of magnesium combines with 40 g of oxygen to make 100 g of magnesium oxide, then 30 g of magnesium will combine with 20 g of oxygen to make 50 g of magnesium oxide.

This happens because in a chemical reaction there is no creation or descruction of atoms, only a rearrangement. Therefore, the mass of reactants should be equal to the mass of products.

The following equation represents the proportions of the substances:

Mg + 1/2O₂ → MgO

5 0
3 years ago
Other questions:
  • How many milliliters of 4.00 m hcl(aq) are required to react with 2.75 g of zn(s)?
    11·1 answer
  • Suppose that at one stage in the reaction, 26.0 mol SO , 2 83.0 mol O2, and 17.0 mol SO3 are present in the reaction vessel at a
    11·1 answer
  • Stronger wind can carry larger particles of sediment. T or F
    6·2 answers
  • Which one of these is an element carbon carbon dioxide air water
    15·1 answer
  • Which of the following models best describes the arrangement of valence electrons in metals?
    8·1 answer
  • How many minutes would be required to electroplate 25.0 grams of chromium by passing a constant current of 4.80 amperes through
    13·1 answer
  • The valency of sodium metal
    13·1 answer
  • Which of the following metal atoms would have the highest conductivity?
    10·2 answers
  • What is leukemia?
    15·1 answer
  • Answer please :) really needed
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!