0.76 gm MgO is obtained from 0.46 gm Mg.Show that these results are in accordance with the law of reciprocal proportion.

0.16 gm hydrogen form 1.45 gm water on reaction with oxygen.Show that these results are in accordance with the law of reciprocal proportion.

5g of pure MgO (obtained by reaction of metallic magnesium with oxygen) contains 3g of Mg. again 8.5 g of pure MgO (obtained by heating MgCO_(3) ) contains 5.1g of Mg. show that these results are in accordance with the law of constant proportions.

Two oxides of a metal, M were heated separately in hydrogen. The water obtained in each case were carefully collected and weighed. It was observed that- (1) 0.725g of the first oxide gives 0.18g of water and (2) 2.86g of the second oxide gives 0.36g of water. show that these results are in acccordance with the law of multiple proportions.

Three elements X, Y and Z form three different compounds XY, YZ, and XZ. If XY contains 75% X, XZ contains 72.76% Z and YZ contains 11.11% Y, then show that these results illustrate the law of reciprocal proportion.

Copper gives two oxides. On heating one gram of each in hydrogen, we get 0.888g and 0.798g of the metal respectively. Show that these results are in agreement with law of multiple proportion.

Ammonia contains 17.65% of hydrogen, water contains 11.11% of hydrogen and nitrous oxide contains 36.36% of oxygen. Show that these data illustrate the law of reciprocal proportions.

Show that the following experimental data are in agreement with the law of reciprocal proportions: (1) 0.46g of Mg on burning in air forms 0.76g of MgO. (2) 0.41 g of Mg on reaction with excess of acid produces 380 cm^(3) of H_(2) at STP.

Total energy obtained from 1 gm protein and 1 gm fat is

With reference to where a small bar magnet M approaches a coil C (with ends connected to a galvanometer), show that, Lenz's law is consistent with the principle of conservation of energy. What will be the magnetic polarity of the coil according to the diagram, as the magnet moves through it and comes out from the left?

The equation x^(2)+bx+c=0 has distinct roots. If 2 is subtracted from each root the result are the reciprocal of the original roots, then b^(2)+c^(2) is