A) balance the following equations:
i) pbcl2 + agno3 < > agcl + pb (no3) 2
ii) alcl3 + nh4oh < > al(oh)3 + nh4cl
iii) fecl3 + ca(oh)2 < > cacl2 + fe(oh)3
iv) pb(clo3)2 + k2so4 < > pbso4 + kclo3
v) na + hoh < > naoh + h2
vi) zn + hcl < > zncl2 + h2
vii) al + agch3coo < > al(ch3coo)3 + ag
viii) mgo + hno3 < > mg (no3)2 + h2o
ix) mno2 < > mn3o4 + o2
b) why is it incorrect to alter the chemical formula when balancing an equation?

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

3.) for each of the following compounds, draw the major organic product of reaction with hcl or naoh and circle whether the starting materials and products will be more soluble in organic solvent or water benzoic acid + hcl: benzoic acid + naoh: oh benzoic acid water/organic water organic fluorenone hс: fluorenone + naoh: fluorenone water/organic water/organic веnzocaine + hci: benzocaine + n»oh: h2n benzocaine water/organic water organic o=

Element before carbon on the periodic table