Homework Answers
1. Answer a) Water turns to green when universal indicator is added to it as water is neutral. When soda straw is used to blow bubbles, As straw is basic it reactes with universal indicatoor to give greenish blue colour.
b) Reaction involved can be : H2O + NaOH -------> Na- + H3O+
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4) Get a medium test tube and fill it with about 5 mL of water and...
Chemistry Laboratory Manual 2017 Revision 3) Get a medium test tube and place about 2 ml...
Chemistry Laboratory Manual 2017 Revision 3) Get a medium test tube and place about 2 ml of hydrochloric acid into it. Now add a piece of magnesium metal and notice what happens over time Evidence of a shemical reaction white bubbles Balanced chemical equation: Balanced lonie equation: Balanced net ionic equation: 4) Demonstration: Your instructor will demonstrate the reaction that takes place between lithium metal and water. The demonstration will include a test of the resulting solution with universal indicator...
Get a medium test tube and place about 2 ml of copper (II) sulfate solution into...
Get a medium test tube and place about 2 ml of copper (II) sulfate solution into it. Now add a piece of zinc metal and notice what happens over time. Write the balance chemical equation, blanced ionic equation, and balanced net ionic equation, show your steps. Get a medium test tube and place about 2 mL of zinc sulfate solution into it. Now add a piece of copper metal and notice what happens over time. Write the balanced chemical equaqtion,...
Use the 100 mL graduated cylinder to measure and pour 50 mL of distilled water into Beaker 1. Use the 100 mL graduated c...
Use the 100 mL graduated cylinder to measure and pour 50 mL of distilled water into Beaker 1. Use the 100 mL graduated cylinder to measure and pour 48 mL of distilled water into Beaker 2. Use the 10 mL gradated cylinder to measure and pour 1 mL of saturated sodium bicarbonate solution into Beaker 1. Then, add 2 drops of phenol red to Beaker 1. Gently mix the solution. Use the straw to blow bubbles into Beaker 1. Start...
Prime Replacement 1) Get a medium testube and place ma Nowa piece of metal and the whar Evidence of chemical t e io...
Prime Replacement 1) Get a medium testube and place ma Nowa piece of metal and the whar Evidence of chemical t e ion in LZinc got darker, hebbles Balanced chemical equation: forced ontoplayer Balanced ionic equation: Balanced net ionic equation: 2) Get a medium test tube and place about 2 mL of zinc sulfate solution into it. Now add a piece of copper metal and notice what happens over time. Evidence of a chemical reaction: small bubbles but nothing happened...
I put 5 mL of water in a test tube with 3 drops of the indicator...
I put 5 mL of water in a test tube with 3 drops of the indicator methyl orange. If I wanted my solution to become red in color, I should add 1 Select]
Part IV. Decomposition Into a test tube, place about 2 mL of 3% hydrogen peroxide along with a pea size amount of...
Part IV. Decomposition Into a test tube, place about 2 mL of 3% hydrogen peroxide along with a pea size amount of Mnog Manganese dioxide, the common name, is used as a catalyst. Remember, that a catalyst is used to lower the activation energy of a reaction, thereby speeding up the reaction. It does not get con- sumed in the reaction and therefore is not part of your balanced chemical equation. It is written above the reaction arrow in a...
QUALITATIVE ANALYSIS PROCEDURE: Place 1 ml of your unknown solution in a medium test tube. Add...
QUALITATIVE ANALYSIS PROCEDURE: Place 1 ml of your unknown solution in a medium test tube. Add 2 drops of 6 M HNO3, then 1 ml of 5 M NH4OH and stir. Centrifuge and decant the solution. Include the chemical equation for the positive test observed.
f. Place about 2 mL of iron (III) chloride solution, FeCl3(aq), in a test tube. Add...
f. Place about 2 mL of iron (III) chloride solution, FeCl3(aq), in a test tube. Add about 10 drops of potassium thiocyanate solution, KSCN(aq). Observe any changes. Place a small amount of solid sodium bicarbonate, NaHCO3. also known as baking soda) in the bottom of a dry test tube. Cover the bottom to a depth of about 1 em. Quickly pour in about 2 mL of acetic acid, HC2H309. Observe any changes. There are really two reactions occurring here, one...
1. Add hydrochloric acid (HCl) to magnesium metal in a test tube. Observations: &
1. Add hydrochloric acid (HCl) to magnesium metal in a test tube. Observations: Reactants: Products: Chemical Equation: 2. Add calcium nitrate to sodium carbonate in a test tube. Observations: Reactants: Products: Chemical Equation: 3. Add iron (III) nitrate to sodium hydroxide in a test tube. Observations: Reactants: Products: Chemical Equation: 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...
i. Add about 2 mL of cobalt (II) chloride solution, CoCl2(aq), to a clean test tube....
i. Add about 2 mL of cobalt (II) chloride solution, CoCl2(aq), to a clean test tube. Add about 10 drops of the sodium hydroxide solution, NaOH(aq). Observe any changes. j. Place about 2 mL of silver nitrate solution, AgNO3(aq), to a clean test tube. Add about 10 drops of 3M hydrochloric acid, HCl(aq). Observe any changes. i. Reactants Type of Reaction Observations: Balanced Equation i. Reactants Type of Reaction Observations: Balanced Equation
Chemistry Laboratory Manual 2017 Revision 3) Get a medium test tube and place about 2 ml of hydrochloric acid into it. Now add a piece of magnesium metal and notice what happens over time Evidence of a shemical reaction white bubbles Balanced chemical equation: Balanced lonie equation: Balanced net ionic equation: 4) Demonstration: Your instructor will demonstrate the reaction that takes place between lithium metal and water. The demonstration will include a test of the resulting solution with universal indicator...
Prime Replacement 1) Get a medium testube and place ma Nowa piece of metal and the whar Evidence of chemical t e ion in LZinc got darker, hebbles Balanced chemical equation: forced ontoplayer Balanced ionic equation: Balanced net ionic equation: 2) Get a medium test tube and place about 2 mL of zinc sulfate solution into it. Now add a piece of copper metal and notice what happens over time. Evidence of a chemical reaction: small bubbles but nothing happened...
I put 5 mL of water in a test tube with 3 drops of the indicator methyl orange. If I wanted my solution to become red in color, I should add 1 Select]
Part IV. Decomposition Into a test tube, place about 2 mL of 3% hydrogen peroxide along with a pea size amount of Mnog Manganese dioxide, the common name, is used as a catalyst. Remember, that a catalyst is used to lower the activation energy of a reaction, thereby speeding up the reaction. It does not get con- sumed in the reaction and therefore is not part of your balanced chemical equation. It is written above the reaction arrow in a...
f. Place about 2 mL of iron (III) chloride solution, FeCl3(aq), in a test tube. Add about 10 drops of potassium thiocyanate solution, KSCN(aq). Observe any changes. Place a small amount of solid sodium bicarbonate, NaHCO3. also known as baking soda) in the bottom of a dry test tube. Cover the bottom to a depth of about 1 em. Quickly pour in about 2 mL of acetic acid, HC2H309. Observe any changes. There are really two reactions occurring here, one...
i. Add about 2 mL of cobalt (II) chloride solution, CoCl2(aq), to a clean test tube. Add about 10 drops of the sodium hydroxide solution, NaOH(aq). Observe any changes. j. Place about 2 mL of silver nitrate solution, AgNO3(aq), to a clean test tube. Add about 10 drops of 3M hydrochloric acid, HCl(aq). Observe any changes. i. Reactants Type of Reaction Observations: Balanced Equation i. Reactants Type of Reaction Observations: Balanced Equation
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