Na,CO3(aq) + CaCl2(aq) → 2 NaCI(aq) + CaCO3(s)

a Balance the following chemical equation: ZnCl₂ (aq) + NaOH(aq) → Zn(OH)2 (s) + NaCl(aq) 2ZnCl₂ (aq) + 3NaOH(aq) → 4Zn(OH)2 (s) + 3NaCl(aq) 3ZnCl₂ (aq) + NaOH(aq) → 4Zn(OH)2 (s) + 2NaCl(aq) ZnCl₂ (aq) + 2NaOH(aq) → Zn(OH)2 (s) + 2NaCl(aq) ZnCl₂ (aq) + 3NaOH(aq) → Zn(OH)2 (s) + 3NaCl(aq) b Balance the following chemical equation: Ba(C₂H3O2)2 (aq) + K₂SO4 (aq) → BaSO4(s) + KC2H3O2 (aq) 2Ba(C₂H3 O2)2 (aq) + 5K2SO4 (aq) → 2BaSO4(s) + 2KC2H3O2 (aq) 2Ba(C₂H3 O2)2 (aq) + 2K2SO4 (aq) → 2BaSO4(s) + 3KC₂ H3 O2 (aq) Ba(C₂H3O2)2 (aq) + K₂SO4 (aq) → BaSO4 (s) + 2KC₂H3O2 (aq) Ba(C2₂H3 O2)2 (aq) + 4K₂SO4 (aq) → BaSO4(s) + KC₂ H3O₂ (aq) C Balance the following chemical equation: SO₂(g) + H₂O(1) → H₂SO3(aq) 3SO₂(g) + H₂O(1) → 4H₂SO3(aq) SO₂(g) + 2H₂O(1) → 2H₂SO3(aq) 2SO2(g) + 3H₂O(1) → 6H₂SO3(aq) SO₂(g) + H₂O(1) → H₂SO3(aq)

The following chemical reaction takes place in aqueous solution: MnSO4(aq)+2 KOH(aq) →Mn(OH)2(s)+K₂SO4(aq) Write the net ionic equation for this reaction. ☐ ローロ X

The reaction, Al(s) + HCIO4(aq) →AI(CIO4)3(aq) + H₂(g), involves changes in oxidation numbers and is therefore classified as a redox reaction. O True O False revious Nex

To measure the amount of calcium carbonate (CaCO3) in a seashell, an analytical chemist crushes a 4.30 g sample of the shell to a fine powder and titrates it to the endpoint with 233. mL of 0.2700M hydrogen chloride (HCI) solution. The balanced chemical equation for the reaction is: 2HCl(aq) + CO3(aq) → H₂CO3(aq) + 2Cl(aq) 19 0 What kind of reaction is this? O precipitation O acid-base redox X olo If you said this was a precipitation reaction, enter the chemical formula of the precipitate. 0 Ar If you said this was an acid-base reaction, enter the chemical formula of the reactant that is acting as the base. If you said this was a redox reaction, enter the chemical symbol of the element that is oxidized. Calculate the mass percent of CaCO3 in the sample. Be sure your answer has 3 significant digits. П 0 0% S ?

Write the net ionic equation, including phases, that corresponds to the reaction   Pb(NO3)2(aq)+Na2CO3(aq)⟶PbCO3(s)+2NaNO3(aq)

How many millilitres of 0.450 mol L−1 H2SO4(aq) are required to completely neutralize 46.7 mL of 0.930 mol L−1 KOH(aq) ? Hint: Write a balanced chemical equation for the reaction.   Give your answer in mL, accurate to three significant figures. Do not include units as part of your answer.

For each of the following reactions, suggest two soluble ionic compounds that, when mixed together in water, result in the net ionic equation given: (a) 2 Ag+ (aq) + CO3²¯ (aq) → Ag₂CO3(s) (b) Mg²+ (aq) + 2 OH¯(aq) → Mg(OH)₂(s), the suspension present in milk of magnesia 3+ (c) 3 Ca³+ (aq) + 2 PO2 (aq) → Ca3(PO4)2(s), gypsum, a component of concrete

Balance the following equations:

Write the net ionic equation for the reaction below (this includes coefficients, charges, and phases). CrCl3(aq)+3NaOH(aq)->Cr(OH)3(s)+3NaCl(aq)