Balance the following equations by adding the stoichiometric ratios and ionic charges (include the + or - charge).  Do not leave the boxes blank or it will mark you incorrect. Report the stoichiometry coefficients as whole numbers (no fractions). If the stoichiometry is 1 please insert 1 in the box(es) below.  You don't have to add a 1 for the charge. Sodium carbonate is dissolved in water [Fill in the blank] Na2CO3(s)   →   [Fill in the blank] Na[Fill in the blank] (aq)   +   [Fill in the blank] CO3[Fill in the blank] (aq) 多项填空题