Question- thirty mg of calcium and 50 mg of magnesium are
Question- Thirty mg of calcium and 50 mg of magnesium are dissolved in 0.50 L of water. What is the total hardness of the solution expressed in mg/L as CaCO3
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question an electron starting from rest and moving with a constant acceleration travels 200 cm in 500 mspart i what is
problem consider 1 mol an ideal gas at 30oc and 104 atm pressure to get some idea how close these molecules are to each
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question a passenger tries to estimate the acceleration of a train by measuring the angle between the draw string of a
question- thirty mg of calcium and 50 mg of magnesium are dissolved in 050 l of water what is the total hardness of the
problem a baseball is hit with a speed of 30ms at an angle of 450 degree it lands on the flat roof of a 130-m-tall
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problem a 125 kg block lies on a 300 degree incline a rope connects the block to the upper end of the incline the rope
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