What mass of salt is formed if 10 grams of hot sodium is taken for the reaction and 0.2 mol of nitric acid solution is added?

The answer you are looking for is option d

Those are different gas lawshere is a brief description of themcharles's law states that volume and temperature are directly proportional to each other as long as pressure is held constant.  boyle's law asserts that pressure and volume are inversely proportional to each other at fixed temperature.gay-lussac's law introduces a direct proportionality between temperature and pressure as long as it is at a constant volume.    source:

What's the answer to this question is how do you know

The answer your looking for is that both valance is 1 because they are both in the alkali group