Decide whether each chemical reaction in the table below is an oxidation-reduction ("redox") reaction. If the reaction is a redox reaction, write down the formula of the reducing agent and the formula of the oxidizing agent. HCl(aq) + NH, (aq) → NH₂Cl(aq) S, (s) + 4Pb (s)→ 4PbS, (s) 3Cr(NO₂)₂ (aq) + 2Al(s) 3Cr(s) + -2A1(NO₂), (aq) redox reaction? yes reducing agent: oxidizing agent: reducing agent: 1 1 redox reaction? yes oxidizing agent: Ono 0 redox reaction? yes reducing 1 agent: oxidizing 1 agent: no no 0⁰ X 0. Ś

W Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of Na2CO3 and HCl are mixed. O 2 H* (aq) + CO3²-(aq) → H₂CO3(s) 2 Na* (aq) + CO3²- (aq) + 2 H*(aq) + 2 Cï(aq) → H₂CO3(s) + 2 NaCl(aq) O 2 H* (aq) + CO3²-(aq) → H₂O(1) + CO₂(g) 2 Na* (aq) + CO3²- (aq) + 2 H* (aq) + 2 Cl(aq) → H₂CO3(s) + 2 Na*(aq) + 2 Cl(aq) No reaction occurs.

What is the correct net ionic equation for the following double displacement reaction? Mg(NO3)2 (ag) +2 KF (ag) MgF (s) + 2 KNO, (ag) → a. Mg+2 (ag) + F (ag) M9F2 (s) b. Mg*2 (aq) +2 NO, (ag) + F (aq) → MgF, (s) +2 NO, (aq) c. Mg*2 (ag) + 2F (ag) - MgF2 (s) d. Mg*2 (ag) + (aq) - MgF, (s) c. K* (ag) + NO, (ag) KNO, (aq)

Determine if the following reaction is a redox reaction. Use evidence from the equation to explain your reasoning.

If 16.5 g of NaOH is added to 0.550 L of 1.00 M Ni(NO₃)₂, how many grams of Ni(OH)₂ will be formed in the following precipitation reaction?2 NaOH(aq) + Ni(NO₃)₂(aq) → Ni(OH)₂ (s) + 2 NaNO₃ (aq)

Give the complete ionic and net ionic equation for the reaction below. Circle the spectator ions. Fe(s) + 2 AgNO3(aq)  →  2 Ag(s) + Fe(NO3)2(aq)

The following chemical reaction takes place in aqueous solution: CuCl₂(aq)+Na₂S (aq) → CuS (s)+2 NaCl(aq) Write the net ionic equation for this reaction. 0

To measure the amount of chlorine in a well-boring fluid, an analytical chemist adds 0.3600M silver nitrate AgNO3 solution to a 24.00g sample of the fluid and collects the solid silver chloride AgCl product. When no more  AgCl is produced, he filters, washes and weighs it, and finds that 1.28g has been produced. The balanced chemical equation for the reaction is: Cl−(aq) + AgNO3(aq) -> AgCl(s) + NO−3(aq) What kind of reaction is this? If you said this was a precipitation reaction, enter the chemical formula of the precipitate. 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 Cl in the sample. Be sure your answer has the correct number of significant digits.

If 28.5 g of NaOH is added to 0.750 L of 1.00 M Cd(NO₃)₂, how many grams of Cd(OH)₂ will be formed in the following precipitation reaction? 2 NaOH(aq) + Cd(NO₃)₂(aq) → Cd(OH)₂ (s) + 2 NaNO₃(aq)

What is the balanced net ionic chemical equation between Cu^2+ (aq) and I^- (aq)?