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mr Goodwill [35]
3 years ago
14

Which is the correct Lewis structure for OBr?

Chemistry
1 answer:
____ [38]3 years ago
3 0

Answer:Covalent compound (I,C,W,H are nonmetals)

Valence of I: 7

Valence of C (C must form an octet): 4

Valence of W: 6

Valence of H: 1

Total valence electrons: 19

Molar mass: 324.77 g/mol

Explanation:

You might be interested in
Determine the mass (in grams) of 8.02 x 1024 atoms of mercury (Hg).
Virty [35]
<h3>Answer:</h3>

2670 g Hg

<h3>General Formulas and Concepts: </h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Reading a Periodic Table
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

<u>Stoichiometry</u>

  • Using Dimensional Analysis
<h3>Explanation: </h3>

<u>Step 1: Define</u>

8.02 × 10²⁴ atoms Hg

<u>Step 2: Identify Conversions</u>

Avogadro's Number

Molar Mass of Hg - 200.59 g/mol

<u>Step 3: Convert</u>

  1. Set up:                               \displaystyle 8.02 \cdot 10^{24} \ atoms \ Hg(\frac{1 \ mol \ Hg}{6.022 \cdot 10^{23} \ atoms \ Hg})(\frac{200.59 \ g \ Hg}{1 \ mol \ Hg})
  2. Divide/Multiply:                                                                                               \displaystyle 2671.42 \ g \ Hg

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

2671.42 g Hg ≈ 2670 g Hg

3 0
3 years ago
Two cities in Germany are located 25 km apart. What is the<br>distance in miles?​
gtnhenbr [62]

Answer: about 15 miles or exactly 15.53 miles

Explanation:

3 0
3 years ago
Read 2 more answers
Cadmium bromide is used in photography and lithography. What is the molality of a solution prepared by dissolving 45.38 g of CdB
mash [69]

Answer:

0.44 m is the molality

Explanation:

Molality means mol of solute in 1kg of solvent.

Solute → CdBr₂

Solvent → H₂O

Mass / Molar mass = 45.38 g / 272.21 g/m = 0.167 moles

1 g = 1x10⁻³ kg

375 g = 0.375 kg

0.167 m/0.375 kg = 0.44 m

6 0
3 years ago
What is the volume of an object with the height of 2cm, a width of 4cm, a mass of 20g, and a length of 5cm?
kotegsom [21]

Answer:

d

Explanation:

7 0
2 years ago
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Ne mutlu TÜRKÜM DİYENE...
Nata [24]

what is the question?


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3 years ago
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