Which equation demonstrates that nuclear fusion forms elements that are heavier than helium?

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?

You open a can of soda at room temperature and hear a hiss. which of the following factors has changed inside the container? a.) atmospheric pressure b.) temperature of gas c.) type of gas d.) amount of gas