What is the atomic mass of hafnium if, out of every 100 atoms, 5% have a mass of 176, 19% have a mass of 177.0, 27% have a mass of 178.0, 14% have a mass of 179.0, and 35% have a mass of 180.0?

While in europe, if you drive 125 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car’s gas mileage is 32.0 mi/gal? assume that 1 euro=1.26 dollars

Which would freeze at a higher temperature: the great salt lake or lake tahoe? a. lake tahoe would freeze at a higher temperature. b. the great salt lake would freeze at a higher temperature. c. both lakes would freeze at the same temperature.

Which method would be best to separate a mixture of sand and gravel