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mr Goodwill [35]
2 years ago
9

Can anyone answer this? I'd appreciate it. :0

Chemistry
2 answers:
Ganezh [65]2 years ago
8 0

Answer:

Triclinic crystal forms. Also known as the rhombohedron system, its shape is three dimensional like a cube, but it has been skewed or inclined to one side making it oblique. All crystal faces are parallel to each other. A rhombohedral crystal has six faces, 12 edges, and 8 vertices.

bascially short answer is 6 faces

Tom [10]2 years ago
6 0

Answer: The answer is C. 6 faces

Explanation:

The answer is 6 faces because think about how many sides a 3 dimentional square has, and once I figures that out I'm left with the anser 6.

Hope this helped (:

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Which of the following series of isoelectronic ions (Mg²⁺, N³⁻, F⁻, Si⁴⁺) has the ionic radii in order of largest to smallest? A
Rom4ik [11]

Answer:

Option (d) is correct

N³⁻ > F⁻ > Mg²⁺ > Si⁴⁺

Explanation:

Total electrons for all the species = 10

So these are <u>iso electronic</u> with each other.

We know

Ionic radii ∝ \frac{Magnitude of Negative Charge}{Magnitude of Positive Charge}

  • Si⁴⁺ has 14 protons and 10 electrons
  • Mg²⁺ has 12 protons and 10 electrons
  • N³⁻ has 7 protons and 10 electrons
  • F⁻ has 9 protons and 10 electrons
  • Iso electronic species with greatest number of protons have small size and vice versa.
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4 0
3 years ago
True or False
alexdok [17]
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A gas with a volume of 250 mL at a temperature of 293K is heated to 324K. What is the new volume of the gas?
ANEK [815]

Answer:

The new volume of the gas is 276.45 mL.

Explanation:

8 0
3 years ago
11C. Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory to standardize strong base solut
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For the reactants,

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For the products,

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Here, arsenic (+5 to +3) and carbon (+3 to +4) are the only oxidation numbers changing.

Note that an increase in oxidation number means electrons are lost. Thus oxidation is occurring, and a decrease in oxidation number means electrons are being gained, and thus reduction is occurring.

Also, the compound that contains the element being oxidized is the reducing agent, and the compound that contains the element being reduced is the oxidizing agent.

So, the answers are:

name of the element oxidized: Carbon

name of the element reduced: Arsenic

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formula of the reducing agent: \text{H}_{2}\text{C}_{2}\text{O}_{4}

6 0
2 years ago
Cl2(aq) + H2O H+(aq) + Cl–(aq) + HOCl(aq)
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6 0
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