Which salt is produced when h2so4 reacts with naoh?

The type of chemical reaction that occurs when H2SO4 react with NaOH is neutralization reaction; in this reaction salt and water are always the products of the reaction. The balanced equation for the chemical reaction is given below:

H2SO4 + 2NaOH = 2H2O + Na2SO4.

The equation implies that, two molecules of NaOH react with one molecule of H2SO4 to give two molecules of water and one molecule of Na2SO4.

Thus, the salt that is produced from the reaction is disodium sulphate, Na2SO4.

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

hope this : -)

tony (lordcaos066)

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.