chemistry

Write a balanced chemical equation based on the following description: aqueous silver nitrate reacts with aqueous nickel(II) chloride to produce solid silver chloride and aqueous nickel(II) nitrate

2 AgNO₃(aq) + NiCl₂(aq) → 2 AgCl(s) + Ni(NO₃)₂(aq)

What is the coefficient in front of the O₂ when the equation below is balanced (using only whole numbers and the lowest whole number ratio)? C₂H₄(g) + O₂ (g) → CO₂(g) + H₂O (g)

3

When butanol (C₄H₉OH) is burned in oxygen, CO₂ and H₂O are the products. What is the coefficient in front of the O₂ in the balanced equation (using only whole numbers and the lowest whole number ratio)?

6

Write a balanced chemical equation based on the following description: solid cesium reacts with solid cesium nitrite to form solid cesium oxide and nitrogen gas.

6 Cs(s) + 2 CsNO₂(s) → 4 Cs₂O(s) + N₂(g)

Al₂(SO₄)₃ (aq) + K₃PO₄ (aq) → AlPO₄ (s) + K₂SO₄ (aq) A) Al₂(SO₄)₃ (aq) + 2 K₃PO₄ (aq) → 2 AlPO₄ (s) + 3 K₂SO₄ (aq) B) 2 Al₂(SO₄)₃ (aq) + 6 K₃PO₄ (aq) → 3 AlPO₄ (s) + 6 K₂SO₄ (aq) C) 2 Al₂(SO₄)₃ (aq) + 4 K₃PO₄ (aq) → 4 AlPO₄ (s) + 6 K₂SO₄ (aq) D) AlSO₄ (aq) + KPO₄ (aq) → AlPO₄ (s) + KSO₄ (aq)

A) Al₂(SO₄)₃ (aq) + 2 K₃PO₄ (aq) → 2 AlPO₄ (s) + 3 K₂SO₄ (aq)

An aqueous solution of Mg(NO₃)₂ and NaOH generates the solid precipitate Mg(OH)₂. Which of the following would NOT appear in the corresponding net ionic reaction? A) Mg²⁺ B) NO₃⁻ C) OH⁻ D) Mg(OH)₂ E) Both (A) and (C)

B) NO₃⁻

Which one of the following statements is correct about the reaction below? Mg(s) + 2 HCl(aq) → MgCl₂(s) + H₂(g)

D) H is the oxidizing agent because it gains electrons.

Write a balanced chemical equation based on the following description: the reaction of solid iron(III) sulfide with aqueous hydrochloric acid to form aqueous iron(III) chloride and hydrogen sulfide gas.

Fe₂S₃(s) + 6HCl(aq) → 2FeCl₃(aq) + 3H₂S(g)

What solid would form when phosphoric acid (H₃PO₄) is added to milk of magnesia (Mg(OH)₂)? A) MgO B) No solid would form. C) Mg(OH)₂ D) MgPO₄ E) Mg₃(PO₄)₂

Mg₃(PO₄)₂

Write the balanced COMPLETE ionic equation for the reaction when AuBr₃ and NH₄NO₃ are mixed in aqueous solution. If no reaction occurs, simply write only NR.

NR

Which of the following aqueous solutions would NOT form a precipitate when added to a solution of silver nitrate? A) NaF B) NaCl C) NaBr D) NaI

NaF

Write the balanced COMPLETE ionic equation for the reaction when NaC₂H₃O₂ and HCl are mixed in aqueous solution. If no precipitation reaction occurs, simply write only NR.

Nr

What is the oxidizing agent in the reaction Zn + 2 H⁺ → Zn²⁺ + H₂? A) Zn B) H⁺ C) Zn²⁺ D) H₂ E) This is not a redox reaction.

h+