Answer: chemical energy is converted to heat and light energy
Explanation: exothermic reaction
4CH3+7O2–>6 H2O+4CO2+energy
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The answer is
<span> C. viscosity.
</span>Temperature and silica content determine the viscosity of magma.
The viscosity of amagma<span> is largely controlled by the </span>temperature.
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The Answer is A
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Explanation:
About 78 per cent of the air is nitrogen and 21 per cent is oxygen. These two gases can be separated by fractional distillation of liquid air.
Answer: 
Explanation:
Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation state of the substance increases.
Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.

The oxidation half reaction is:

The reduction half reaction is:
