2AgNO3 + Cu --> Cu(NO3)2 + 2Ag. 1. what mass of silver is produced from 1.57 moles of Cu. 2. what mass of silver is produced from 100 g of Cu. 3. how many moles of copper is needed to produce 29.5g of silver. 4. how many grams of copper is this.​

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit

Ethanol (c2h5oh) is produced from the fermentation of sucrose in the presence of enzymes. c12h22o11(aq) + h2o(g) 4 c2h5oh(l) + 4 co2(g) determine the theoretical yield and the percent yields of ethanol if 680. g sucrose undergoes fermentation and 326.5 g ethanol is obtained. theoretical _ g _ percent %

The excretory system,need answers for all: )