If in a stick of chalk, carbon is 3g, what is the weight of the chalk stick?

Ruby bought a watermelon weighting 5 kg 200 g.Out of this she gave 2 kg 750 g to her neighbour .What is the weight of the watermelon left with Ruby?

Aakash bought vegetables weighing 10 kg.Out of this 3 kg 500 g is onions,2 kg 75 g is tomatoes and the rest is potatoes .What is the weight of the potatoes?

Mass of an object is 10 kg. What is the weight on the earth (g = 9.8 ms^-2) ?

A sample of calcuium carbonate (CaCO_(3)) has the following percentage composition: Ca=40%, C=12%, O=48% If the law of constant proportions is true. Then the weight of calcium in 4 g of a sample of calcium carbonate obtained from another source will be

A metre stick is balanced on a knife edge at its centre. When two coins, each of mass 5 g are put one on top of the other at the 12.0 cm mark, the stick is found to be balanced at 45.0 cm. What is the mass of the metre stick?

100 mL of 0.6 M acetic acid is shaken with 2 g activated carbon . The final concentration solution after adsorption is 0.5 M. what is the amount of acetic acid adsorbed per gram of carbon ? 0.6 g, 0.3 g, 1.2 g, none of these.