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natita [175]
3 years ago
10

Which type of erosion most likely formed the Grand Canyon?

Chemistry
1 answer:
butalik [34]3 years ago
4 0
Flowing water of course
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A car rolls down a ramp. What is the force acting on the car that causes the movement down the ramp? A) acceleration B) centripe
Ann [662]
The answer for the question is D.
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D) +1
timurjin [86]

Answer:

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A company uses a substance that is Solid under normal conditions this substance will be used in extreme conditions which could m
creativ13 [48]

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Extreme heat will cause the substance molecules to move faster and cause a phase change this phase change would occur if left in an extremely hot area causing the molecules to spread apart.

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3 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
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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.
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3 years ago
Using the example of an ambulance, explain the Doppler Effect. Infer why the doppler effect can or cannot occur in all waves. PL
kozerog [31]

Answer:

When the ambulance is coming towardss you the waves are smushed together and sound higher pitched but then it passes you and when tracveling away the waves are scretched out so the whee whoo sounds lower and that is because of the doppler effect

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