Use the balanced equation [Cu + 2AgNO3 -> 2Ag + Cu(NO3)2] and your calculated percent yield (78.2%) to calculate how many grams of copper you’d need to use in order to produce 2.00 grams of silver? Show your work!

Iwould you figure it out but you don't have a picture or in your question as to what the physical property you're looking for is

Small amounts of matter are converted intolarge amounts of energy occurs in both fusion and fission reactions. they are nuclear reactions where a change in the identity or characteristics of an atomic nucleus results when it is bombarded with an energetic particle, as in fission, fusion, or radioactive decay.