Additional Problems 4.103 Classify the following reactions according to the types discussed in the chapter. (a) Cl₂ + 20H → (b) Ca²+ + CO- - (c) NH3 + H* CI+CIO + H₂O CaCO3 NH

What type (redox, acid-base, precipitation) are the reactions below? For the redox reactions, identify the element that is oxidized and reduced, as well as the oxidizing and reducing agent. For the elements that are oxidized or reduced indicate the oxidation number before and after the reaction occurs. (a)     FeCl3       +          Cu      ⟶        FeCl2       +          CuCl (b)     CuSO4       +          Pb(NO3)2         ⟶       Cu(NO3)2         +          PbSO4 (c)     NH4NO3   ⟶      N2O     +          2 H2O

Q4(B) Define mass number. Explain the following redox reactions.

4.26 Write balanced net ionic equations for the reactions that oc- cur in each of the following cases. Identify the spectator ion or ions in each reaction. (а) Cr./(SO,);(ag) + (NH,),CO,(аg) (b) Ва(NO;)2(ag) + K,SO,(aq) (c) Fe(NO3)2(aq) + KOH(aq)

5. Write the equations for the neutralization reactions (a) between Magnesium Hydroxide and Sulfuric acid and (b) Barrium hydroxide and hydrochloric acid.

Complete and balance the following acid-base and acid-carbonate reactions. (Use the lowest possible whole number coefficients.) (a)    HCl + Ba(OH)2 → (b)    HCl + Al2(CO3)3 → (c)    H3PO4 + LiHCO3 → (d)    Al(OH)3 + H2SO4 →

Determine the oxidation states of the elements in the compounds listed. None of the oxygen-containing compounds are peroxides or superoxides.(a) H2SO4(b) Ca(OH)2(c) BrOH(d) ClNO2(e) TiCl4(f) NaH

typed answer needed

true or false(a) if a substance is oxidised, it is gaining electrons.(b) if an ion is oxidised, its oxidation number increases.

3. Assume that 2.1429 g of Cr(NO3)3 is dissolved in enough water to make 50.00 mL of solution. (a) What is the molarity of Cr(NO3)3? (b) What is the molarity of the chromium(III) cation? (c) What is the molarity of the nitrate anion? The molar mass of Cr(NO3)3 is 238.011 g/mol.