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blagie [28]
3 years ago
7

A welding torch produces a flame by burning acetylene fuel in the presence of oxygen the energy released from the acetylene fuel

is then used to melt a metal which energy transformation happens during this process
Chemistry
2 answers:
Volgvan3 years ago
8 0
Answer : Chemical energy to thermal energy

Explanation : When the welding torch uses the acetylene fuel for producing flame it is using the chemical acetylene to generate energy in form of light, after the flame is produced the fuel is used for melting a metal which is utilizing the thermal energy. So the ultimate final product is generated from chemical to thermal and so the energy transformation is from chemical energy to thermal energy.
enot [183]3 years ago
8 0

Answer:

A. Chemical energy turns into thermal energy.

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Answer: A. 1.60 liters

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2Na_2O_2+2CO_2\rightarrow 2Na_2CO_3+O_2

As can be seen from the balanced chemical equation, 2 moles of CO_2 produce 1 mole of O_2.

According to Avogadro's law, every 1 mole of the gas occupies 22.4 liters at STP.

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44.8 L of CO_2 will produce 22.4 L of O_2

Thus 3.20L of CO_2 will produce \frac{22.4}{44.8}\times 3.20=1.60L



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