A cup has 12.9 g of water at 24.8 °C. If 504 J are added to , what will the final temperature be?

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One of the reactions in a blast furnace used to reduce iron is shown above. how many grams of fe2o3 are required to produce 15.5 g of fe if the reaction occurs in the presence of excess co? a.11.1 g b.22.1 g c.30.0 g d.44.2 g

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.