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TiliK225 [7]
3 years ago
6

4. Determine what elements are in the following compounds.

Chemistry
1 answer:
lilavasa [31]3 years ago
8 0
Nitrogen=2, Hydrogen=8, Carbon=1, Oxygen=3

Hydrogen=4, Carbon=2, Oxygen=2

Iron=1, Nitrogen=2, Oxygen=6
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Which two elements have the same number of energy levels with electrons in them?(1 point)
Vladimir79 [104]

Its B) Boron and Oxygen

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2 years ago
What does it mean if you titrated the acid to a 'hot pink' color All of these
Murrr4er [49]

Answer: Too much base was added

i guessed

Explanation:

3 0
3 years ago
When PCl5 solidifies it forms PCl4+ cations and PCl6– anions. According to valence bond theory, what hybrid orbitals are used by
Vlad1618 [11]

Answer:

sp³

Explanation:

Number of hybrid orbitals = ( V + S - C + A ) / 2

Where

H is the number of hybrid orbitals

V is the valence electrons of the central atom = 5

S is the number of single valency atoms = 4

C is the number of cations = 1

A is the number of anions = 0

For PCl₄⁺

Applying the values, we get:

H = ( 5+4-1+0) / 2

= 4

<u>This corresponds to sp³ hybridization.</u>

5 0
3 years ago
Read 2 more answers
Activity 2 Directions: Select among the choices thbest type of material to be used in making the objects at the left and explain
joja [24]

Answer:

A Walk in the City

Make a list of the number of cars, jeeps, tricycle, and even trucks you've seen on your way to school. On a Decision Making Chart, answer the question, "Does the volume of traffic affect the air quality in my local community?" Write your reasons for saying YES on the Reasons for column, and the reasons for saying NO on the Reasons Against column. At the bottom of a chart, make a position by writing your decision on the same question.

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[question]

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3 0
2 years ago
How many grams of methane gas (CH4) need to be combusted to produce 12.5 L water vapor at 301 K and 1.1 atm? Show all of the wor
tangare [24]
Answer is: 4.45 grams of methane gas <span>need to be combusted</span>.
Balanced chemical reaction: CH₄ + 2O₂ → CO₂ + 2H₂O.
Ideal gas law: p·V = n·R·T.<span>
p = 1.1 atm.
T = 301 K.
V(H</span>₂O) <span>= 12.5 L.
R = 0,08206 L·atm/mol·K.
</span>n(H₂O) = <span>1.1 atm · 12.5 L ÷ 0,08206 L·atm/mol·K · 301 K.
</span>n(H₂O) = 0.556 mol.
From chemical reaction: n(H₂O) : n(CH₄) = 2 : 1.
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m(CH₄) = 0.278 mol · 16 g/mol.
m(CH₄) = 4.448 g.
4 0
3 years ago
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