Calculate the number of moles of the solid reactants, which limited the reactions. (See data
table for molar masses and formula.)

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy

Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied