What type of chemical reaction does this equation represent?

How many molecules of sucrose c12h22o11 are there in 454 grams of sucrose

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)