Calcium carbonate can be decomposed by heating. You start with 24.8 grams of CaCO3 and heat it. CaCO3 + CaO + CO2
Calculate the grams of CaO formed.
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answer; /// the amount of material dissolved in a measure of liquid(concentration) the above statement is (true); /// good luck

the ratio of the conjugate base to the acid required to attain the desired ph.

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.