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Questions and Answers
What is the product of the reaction between sodium and water?
Which of the following is a product of the reaction between barium chloride and sodium sulfate?
What should be done with chemical waste after performing experiments?
In the reaction between zinc and hydrochloric acid, what gas is produced?
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Which chemical is used as an indicator in the experiments mentioned?
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Study Notes
Experimental Activities
- Sodium reacts with water to produce sodium hydroxide (NaOH) and hydrogen gas (H2).
- Zinc reacts with copper(II) sulfate demonstrating a single displacement reaction.
- Zinc (Zn) and magnesium (Mg) both react with hydrochloric acid (HCl) to produce hydrogen gas and respective metal chlorides.
Ionic Compound Reactions
- Calcium chloride (CaCl2) and sodium phosphate (Na3PO4) react to form solid calcium phosphate (Ca3(PO4)2) and sodium chloride (NaCl) in aqueous solution.
- Barium chloride (BaCl2) combines with sodium sulfate (Na2SO4) to create solid barium sulfate (BaSO4) and dissolved sodium chloride.
- Iron(III) chloride (FeCl3) reacts with potassium thiocyanate (KSCN) to form iron(III) thiocyanate complex (Fe(SCN)3) and potassium chloride (KCl).
Reactants and Solutions
- Chemical reagents include metallic sodium (Na), zinc (Zn), magnesium (Mg), and 1.0M solutions of CuSO4 and HCl.
- Additional ionic solutions are provided at concentrations of 0.1M for CaCl2, Na3PO4, BaCl2, Na2SO4, FeCl3, and KSCN.
- Sodium carbonate (Na2CO3) is included for the reaction with HCl.
Supplies and Equipment
- Experimental setup requires test tubes, a test tube rack, matches, and wood splints for demonstrations.
- Phenolphthalein is included as an indicator for acid-base reactions.
Cleaning and Waste Disposal
- Clean all test tubes by rinsing twice in chemical waste followed by scrubbing with soap and thorough rinsing.
- All chemical waste must be disposed of in a designated chemical waste beaker, then transferred to a heavy metals waste container to prevent environmental contamination.
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Description
This quiz covers a variety of chemical reactions involving metals, ionic compounds, and acids. Topics include the reactions of sodium with water, zinc with copper(II) sulfate, and various interactions with hydrochloric acid. Test your knowledge on how different substances react in the laboratory setting.
