What is activation energy? the energy that transports water into cells the energy needed to initiate a reaction potential energy?

What are the resulting coefficients when you balance the chemical equation for the combustion of ethane, c2h6? in this reaction, ethane is burned in the presence of oxygen (o2) to form carbon dioxide (co2) and water (h2o). (g)+(g)→(g)+(g)

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

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