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igor_vitrenko [27]
3 years ago
5

Use the words protons neutrons and I suppose in the same sentence ​

Chemistry
1 answer:
PolarNik [594]3 years ago
5 0

Answer:

Isotopes have the same number of protons but a different number of neutrons.

Explanation:

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Combustion is an exothermic reaction where the reactants are combined with ____
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Answer:

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A gas at 400 k is placed in a 4.0 l moveable piston. The gas is cooled to 252 k. What is the new volume of the piston?
katrin [286]

Answer:

2.52L

       

Explanation:

Given parameters:

T₁  = 400K

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unknown

V₂ = ?

Solution:

To solve this problem, we are going to apply charle's law. The law states that the volume of a fixed mass of gas is directly proportional to temperature provided pressure is constant.

Mathematically,

               \frac{V_{1} }{T_{1} }  = \frac{V_{2} }{T_{2} }

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           \frac{4}{400}  = \frac{V_{2} }{252}

        V₂ = 2.52L

         

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What bonds are broken and octane combustion?
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Common combustion reactions break the bonds of hydrocarbon molecules,

Explanation:

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the bond in a molecule of Cl2 is a covalent bond

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