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Answer:After the hydrogen in the star's core is exhausted, the star can fuse helium to form progressively heavier elements, carbon and oxygen and so on, until iron and nickel are formed. ... Supernova explosions result when the cores of massive stars have exhausted their fuel supplies and burned everything into iron and nickel.
Answer:
The answer will be 160 we have to just multiply it ok
CH₄ + 2 O₂ → CO₂ + 2 H₂O
Explanation:
In the combustion reaction methane (CH₄) will react with oxygen (O₂) to produce carbon dioxide (CO₂) and water (H₂O).
CH₄ + O₂ → CO₂ + H₂O
To balance the chemical equation the number of atoms of each element entering the reaction have to be equal to the number of atoms of each element leaving the reaction, in order to conserve the mass.
So the balanced chemical reaction will be:
CH₄ + 2 O₂ → CO₂ + 2 H₂O
Learn more about:
balancing chemical equations
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Answer:
The loudness of sound is determined, in turn, by the intensity, or amount of energy, in sound waves. The unit of intensity is the decibel (dB) Intensity of sound results from two factors: the amplitude of the sound waves and how far they have traveled from the source of the sound.
Explanation: