1. How many calories are required to melt 25 g of ice, heat the
liquid from 0 C to 100 C and boil the liquid?
18,000 cal
29,500 cal
6,500 cal
26,000 cal
2. Scope mouthwash is a(n)
homogeneous mixture
compound
element
heterogeneous mixture
3.
How many calories are needed to heat 25 g of water from 15 C to
27 C?
110 cal
0.48 cal
300 cal
2.1 cal