it is a i believe: Bicarbonate and carbonic acid (A)
Answer:
b, its a polymer that translates genetic information.
Answer:
Pure copper sulphate can be obtained from an impure sample by re-crystallization. The impure sample is dissolved in water, heated and then cooled which then later forms crystals. These copper sulphate crystals are then separated by filtration and drying.
Zn(NO3)2 + Cu will be the result of this single displacement (replacement) reaction :))
