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DanielleElmas [232]
3 years ago
15

What must happen for an igneous rock to form

Chemistry
1 answer:
Ksenya-84 [330]3 years ago
4 0

Answer:

Igneous Rocks: form by crystallizing melted material (magma).

Explanation:

They can form either on the surface (extrusive igneous rocks), or deep in the crust (intrusive or plutonic igneous rocks).

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Answer:

i am sure its the last one

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The student plans to conduct a spectrophotometric analysis to determine the concentration of Cu2+(aq) in a solution. The solutio
Lelechka [254]

Answer:

The wavelength the student should use is 700 nm.

Explanation:

Attached below you can find the diagram I found for this question elsewhere.

Because the idea is to minimize the interference of the Co⁺²(aq) species, we should <u>choose a wavelength in which its absorbance is minimum</u>.

At 400 nm Co⁺²(aq) shows no absorbance, however neither does Cu⁺²(aq). While at 700 nm Co⁺²(aq) shows no absorbance and Cu⁺²(aq) does.

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4 years ago
Which of these outcomes is conclusive evidence that mixing sugar in water is a physical change
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Mixing water and sugar is a physical change. A physical change is just a change in the form of the substance, whereas a chemical change is when the substance itself changes… chemically. An easy way to figure out which is which is trying to "undo" the change. If it can be undone, it is physical.

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4 years ago
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In which reaction will the point of equilibrium shift to the left when the pressure on the system is increased
Travka [436]
The correct answer for the question that is being presented above is this one: "CaCO3(s) <-> CaO(s) + CO2(g)." In this reaction will the point of equilibrium shift to the left when the pressure on the system is increased: <span>CaCO3(s) <-> CaO(s) + CO2(g)</span>
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A chef makes a marinade by mixing red pepper flakes, dried onion flakes, and a ground ginger with soy sauce. He sets the marinad
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Answer:

Suspension

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This mixture is a simple suspension.

A suspension is a mixture of small insoluble particles of a solid in a liquid or gas. Here, it is insoluble particles in liquid.

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