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ivanzaharov [21]
2 years ago
5

Help please. I beg you

Chemistry
1 answer:
Nookie1986 [14]2 years ago
6 0

Answer:

hello

Explanation:

second option is correct answer

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Evidence of a chemical change would be a ___________________. Question options: spinning top. rusting car fender. spilled bucket
Vikki [24]
The answer is the second option "rusting car fender." Hope this helps.
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3 years ago
a flask was filled with SO2 at a partial pressure of 0.409 atm and O2 at a partial pressure of 0.601 atm. The following gas-phas
jarptica [38.1K]

Answer:

The equilibrium partial pressure of O2 is 0.545 atm

Explanation:

Step 1: Data given

Partial pressure of SO2 = 0.409 atm

Partial pressure of O2 = 0.601 atm

At equilibrium, the partial pressure of SO2 was 0.297 atm.

Step 2: The balanced equation

2SO2 + O2 ⇆ 2SO3

Step 3: The initial pressure

pSO2 = 0.409 atm

pO2 = 0.601 atm

pSO3 = 0 atm

Step 4: Calculate the pressure at the equilibrium

pSO2 = 0.409 - 2X atm

pO2 = 0.601 - X atm

pSO3 = 2X

pSO2 = 0.409 - 2X atm = 0.297

 X = 0.056 atm

pO2 = 0.601 - 0.056 = 0.545 atm

pSO3 = 2*0.056 = 0.112 atm

Step 5: Calculate Kp

Kp = (pSO3)²/((pO2)*(pSO2)²)

Kp = (0.112²) / (0.545 * 0.297²)

Kp = 0.261

The equilibrium partial pressure of O2 is 0.545 atm

3 0
3 years ago
Within a period, the nuclear charge increases as you move from left to right across the
a_sh-v [17]

Answer:

The answer is Ionization energy.

Explanation:

Ionization Energy. The ionization energy tends to increase as one moves from left to right across a given period or up a group in the periodic table.

3 0
3 years ago
What is the empirical formula of a compound containing carbon, hydrogen, and oxygen in the ratio 14:42:84? C14H42O84
kati45 [8]
C:H:O = 14:42:84 = 7:21:42 = 1:3:6

CH₃O₆
6 0
3 years ago
Read 2 more answers
What is a horizontal row of elements on a periodic table
Mariulka [41]

They are called Periods. Lesser known as series

3 0
2 years ago
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