If you want to heat 100 grams of lead, how many calories of heat energy would
be required to raise the temperature of
the lead from room temperature (25 °C)
to 227 °C? (The specific heat capacity of
lead is 0.0306 cal/g • °C)

How many molecules are found in 1.32 mol of nacl?

Helium decays to form lithium. which equation correctly describes this decay?

In november 1987, a massive iceberg broke loose from the antartic ice mass and floated free in the ocean. the chunk of ice was estimated to be 98 mi long, 25 mi wide, and 750 ft thick. a typical backyard swimming pool contains about 24,000 gallons of water. how many of these pools could you fill from the water in this iceberg? (assume the iceberg is a rectangular solid of the above dimensions and consists of water only). express answer in scientific notation.