Use the chemical equation to find the answers. baso4 + h2so4 ? ba(hso4)2 identify how many oxygen atoms are in the product. identify how many oxygen atoms are in the reactant.

 there both 8

Answer : '8' oxygen atoms are present in product side and reactant side.

Explanation :

Law of conservation of mass : It is observed in a balanced reaction. It is defined as the mass of reactant must be equal to the mass of product. Or, in a balanced reaction, the number of atoms on each side of the reaction must be equal.

The balanced chemical reaction is,

Therefore, the given reaction is balanced reaction and there are '8' oxygen atoms present in both the sides (product and reactant) of the reaction.

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.