8. How many joules are needed to change 42.3 g of lead from 44.3°C to 76.8°C? The specific heat of lead is 0.130 J/g °C.

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How many grams of aluminum will there be in 98g of al2o3?

What term is applied to a scientist who studies ancient life, including animal and plant fossils a. anthropologist b. dendroclimatologist c. geophysicist d. paleontologist

Given the following information: mass of proton = 1.00728 amu mass of neutron = 1.00866 amu mass of electron = 5.486 × 10^-4 amu speed of light = 2.9979 × 10^8 m/s calculate the nuclear binding energy (absolute value) of 3li^6. which has an atomic mass of 6.015126 amu. j/mol.