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pickupchik [31]
2 years ago
13

HELP ASAP!!! PLEASE AND THANK YOU!!!

Chemistry
1 answer:
sp2606 [1]2 years ago
6 0
The answer is D. heterogeneous mixture. A heterogeneous mixture<span> </span><span>is a </span>mixture<span> composed of components that aren't uniform across the mixture. </span>
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Why melting point of Fe in blast furnace is lower than ellingham?
Kaylis [27]

Answer:

Because they are different oxides.

Explanation:

In both processes they are involve Iron Oxides, but in the case of Ellingham diagrams, it is consider the Iron in combination with oxygen to form FeO, so the melting point is around 1600  ºC. In the case of blast furnace, the Fe that is present in the ores, are primary the hematite (Fe2O3) and the magnetite (Fe3O4).

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2 years ago
Cite two important quantum-mechanical concepts associated with the Bohr model of the atom.(b) Cite two important additional refi
Alenkinab [10]

Answer: Bohr postulated that electronic energy levels are quantized. Secondly, a photon of light of a particular frequency is emitted when electrons move from a higher to a lower energy levels.

Explanation:

The Bohr model of the atom is the immediate predecessor of the wave mechanical model of the atom. The wave mechanical model refined the Bohr's model by treating the electron as a wave having a wave function psi. The wave function describes the identity of the electron. From Heisenberg uncertainty principle, the position of a particle cannot be accurately and precisely measured. Hence the wave mechanical model added that electrons are not localized in orbits according to Bohr's model but the integral of psi squared dx gives the probability of finding the electron within a given space.

8 0
2 years ago
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How many moles of sulfur dioxide are produced with 6.0 mols of carbon dioxide?
kodGreya [7K]

Answer:

228.38g of CO2

Explanation:

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2 years ago
Which of the following is the correct scientific notation for 0.0000782 g?
Dominik [7]
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7 0
3 years ago
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Convert 3 moles of h2o into grams
lilavasa [31]
To convert 3 mol H2O to grams, just multiply by the molar mass of H2O. 

<span>3 mol H2O * 18 g H2O / 1 mol H2O = 54 g H2O 
 
Hope this helped.</span>
4 0
3 years ago
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