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alex41 [277]
2 years ago
5

What volume of oxygen is needed to react with 20cm3 of ethane?

Chemistry
1 answer:
Anna71 [15]2 years ago
7 0

Answer:

The reaction states that 2 moles of ethane react with 7 moles of oxygen. At standard temperature and pressure conditions (STP), each mole of gas occupies a volume of 22.4 liters. Therefore, 2 moles of ethane occupy liters, and 7 moles of oxygen occupy liters. In other words: 6 liters.

Explanation:

I hope it helps you

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Science againnnnnn helppp!!!!!
Nataliya [291]

Answer: this is not my own words :)

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4 0
3 years ago
What is the natural and human factors that affect climate?
frozen [14]

Answer:

Some of the various things that humans do to the environment is pump CO2 into the air with Fossil Fuels and using Power Plants, Cutting down trees make more CO2 which can make the Earth hotter and cause Global Warming. Some natural things that can tend to affect climate can be changes in Volcanic activity, Solar activity with the sun, and Earth's orbit around the sun.

Explanation:

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8 0
3 years ago
What is the formula for triboron silicide?
artcher [175]

Answer:

B₃Si

Explanation:

Let's take  break it down. From triboron silicide;

Tri - Three

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The formular is given as;

B₃Si

7 0
2 years ago
How many valence electrons does the following isotope have?
Helen [10]

Answer:

I have solution to your question

5 0
2 years ago
For a particular isomer of C 8 H 18 , the combustion reaction produces 5099.5 kJ of heat per mole of C 8 H 18 ( g ) consumed, un
xz_007 [3.2K]

Answer:

the standard enthalpy of formation of this isomer of C₈H₁₈ (g) =  -375 kj/mol

Explanation:

The given combustion reaction

C₈H₁₈ + 25/2 O₂ → 8 CO₂ + 9 H₂O   ............................(1)

Heat of reaction or enthalpy of combustion = -5099.5 kj/mol

from equation (1)

     ΔH⁰reaction = (Enthalpy of formation of products - Enthalpy of formation                    of reactants)

Or,     - 5099.5   = [8 x ΔH⁰f(CO₂) +9 x ΔH⁰f(H₂O)] - [ΔH⁰f(C₈H₁₈) + ΔH⁰f(O₂)].................................(2)

Given ΔH⁰f(CO₂) = - 393.5 kj/mol  & ΔH⁰f(H₂O) = - 285.8 kj/mol and ΔH⁰f(O₂)= 0

Using equation (2)

ΔH⁰f(C₈H₁₈) = -621 kj/mol

3 0
2 years ago
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