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denis23 [38]
3 years ago
9

Explain how cross cutting principles (intrusions, inclusions, faults) help to determine the relative age of a rock layer.

Chemistry
1 answer:
snow_lady [41]3 years ago
6 0

Answer:

The principle of cross-cutting relationships states that a fault or intrusion is younger than the rocks that it cuts through. ... So the fault must be the youngest formation that is seen. The intrusion (D) cuts through the three sedimentary rock layers, so it must be younger than those layers

Explanation:

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nydimaria [60]

Answer:

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8 0
2 years ago
Atoms of which element react spontaneously with mg2+ (aq)?
ehidna [41]
The complete answer contains the answer choices.


This is the complete question:


Atoms of which element react spontaneously with Mg2+(aq)? (1)chromium
(2)barium
(3)iron
(4)zinc


Answer: option 2. barium.


Explanation.


1) Mg ²⁺ (aq) is the aquous cation of the metal Mg.


2) Only a metal more reactive than Mg will be able to exchange with it the oxidation states.


3) Mg is an earth alkalyne metal (group 2 of the periodic table). The metals from this group are more reactive than the metals in the groups to its right: 3, 4, 5, 6, 7, ... Only the alkalyne metals (those in group 1) are more reactive than the earth alkalyne metals.


4) Of the list, barium is the only alkalyne metal, so it is more reactive than Mg and will be able to deliver 2 electrons to transform the cations Mg²⁺ into Mg while the very Ba will become Ba²⁺.


5) Chromium, iron and zinc are transition metals, so less metallic (reactive) than Mg.
3 0
3 years ago
Please helpppp
AysviL [449]

Answer:

3

Explanation:

4 0
3 years ago
Question 7 (2 points)
serg [7]

Answer:

C. decrease the velocity.

4 0
2 years ago
In your opinion, why do you think the atomic models are not final?
julia-pushkina [17]

Answer:

because they change

Explanation:

It was based on theories and discoveries

7 0
2 years ago
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