Additional Exercise 4.32 A 500.0-g piece of iron is heated in a flame and dropped into 400.0 g of water at 10.0 °C. The temperature of the water rises to 90.0 °C. How hot was the iron when it was first removed from the flame?

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plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.