Calcium carbonate is a naturally occuring white solid in the manufacture of lime and cement. calculate the number of Ib moles of calcium carbonate in: a) 50 g-mole of CaCO3
b) 150kg of CaCO3
c) 100 Ib of CaCO3

Sun is explosive itself spread 9 planets.earth is 3rd explosive in the solar system about 500 hundred million years ago . first earth became ice age and freezing climate.centre of earth magma. north zone is artic . south is anatric

Answerhund's rule;

The breaking apart of glucose, which involves spontaneous reactions 

For a collision to be successful you need 2 different objects