How much heat must be added to a 5.21 g sample of gold to increase its temperature by 8.2 °C? (The specific heat of gold is 0.13J/g°C.) Your answer should have one number after the decimal point, followed by a space, followed by j.​

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)

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)

Ineed ! i have no clue how to do this problem.