Question

1. Add hydrochloric acid (HCl) to magnesium metal in a test tube.

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2. Add calcium nitrate to sodium carbonate in a test tube.

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3. Add iron (III) nitrate to sodium hydroxide in a test tube.

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4. Add copper (II) nitrate to ammonium hydroxide in a test tube. For writing the equation, the Roman numeral indicates the charge of copper. Caution: ammonium hydroxide produces very pungent ammonia gas, quickly add ammonium hydroxide to the test tube and immediately replace cap.

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5. Add a few crystals of cobalt (II) chloride hexahydrate into the large test tube. Add one drop of water (or enough to just dissolve the crystals). Heat the test tube with a Bunsen burner.Caution: cobalt (II) chloride is toxic by ingestion, absorption through tissue and inhalation of powder.

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6. Add zinc sulfate to sodium phosphate. Note: zinc always takes a +2 charge.

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7. Add lead (II) nitrate to sodium iodide. The Roman numeral indicates lead has a +2 charge. Note: due to the toxicity of lead, be sure to dispose of any lead into the “heavy metal waste” container.

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8. Place a small amount of copper turnings rolled into a ball in a 50 mL beaker on top of wire gauze placed on the Bunsen burner and turn on the heat. Assume this reaction generates copper with a +2 charge.

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9. While holding the test tube in your hand, add hydrochloric acid to sodium hydroxide. Caution: hydrochloric acid is corrosive and sodium hydroxide is caustic. Both of these substances are at high concentrations and should be handled with care.

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10. Add a few drops of dimethylglyoxime (DMG) indicator to a solution of nickel nitrate. Add magnesium metal to the solution. Note the DMG is not a reactant or product. It merely allows the reaction to be observed easily.

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I just really need help on how to get the Reactants, Product and Chemical Equation.

Answer 1

1) Mg + 2 HCl --> MgCl₂ + H₂

2) Na₂CO₃ + CaCl₂ = NaCl + CaCO₃

3) Fe(NO₃)₂ + NaOH = Fe(OH)₂ + NaNO₃

4) Cu(NO₃)₂ + 2(NH₃•H₂O) → Cu(OH)₂ + 2NH₄NO₃

6) 3ZnSO₄ + 2Na₃PO₄ = 3Na₂SO₄ + Zn₃(PO₄)₂

7) Pb(NO3)₂ + NaI >> NaNO₃ + PbI₂

8) 2 Cu + O₂ → 2 CuO​​​​​​​

9) HCl + NaOH → NaCl + H₂O

10) Ni(NO₃)₂+Mg-->Ni+Mg(NO₃)₂