Gr 9 NATURAL SCIENCES: CH 2.7 SUM The reaction of an acid with a metal
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Questions and Answers

What is the general equation for the reaction between an acid and a metal?

  • Acid + Metal → Acid Salt + Water
  • Acid + Metal → Salt + Hydrogen Gas (correct)
  • Acid + Metal → Salt + Oxygen
  • Acid + Metal → Water + Carbon Dioxide

    • What is the role of a chemist?

  • To diagnose and treat diseases
  • To perform surgical operations
  • To conduct research and analyze substances (correct)
  • To prepare and dispense medications

    • What is the product of the reaction between hydrochloric acid and magnesium?

  • Magnesium Chloride and Hydrogen Gas (correct)
  • Magnesium Oxide and Water
  • Magnesium Hydroxide and Oxygen
  • Magnesium Sulfate and Carbon Dioxide

    • What is the main difference between the work of a chemist and a pharmacist?

    <p>Chemists focus on research, while pharmacists focus on patient care</p> Signup and view all the answers

    What is the chemical equation for the reaction between hydrochloric acid and magnesium?

    <p>2HCl + Mg → MgCl₂ + H₂</p> Signup and view all the answers

    Where do pharmacists typically work?

    <p>Pharmacies, hospitals, and clinics</p> Signup and view all the answers

    What is the role of hydrogen atoms in the reaction between hydrochloric acid and magnesium?

    <p>They combine to form hydrogen gas</p> Signup and view all the answers

    What is the primary focus of a chemist's education?

    <p>Chemistry and related fields</p> Signup and view all the answers

    What is the definition of a pharmacist?

    <p>A healthcare professional who prepares and dispenses medications</p> Signup and view all the answers

    What is the word equation for the reaction between hydrochloric acid and magnesium?

    <p>Hydrochloric acid + Magnesium → Magnesium Chloride + Hydrogen Gas</p> Signup and view all the answers

    What is the main purpose of the investigation in this chapter?

    <p>To observe the reaction between hydrochloric acid and magnesium</p> Signup and view all the answers

    What is the equipment used to collect the gas produced in the investigation?

    <p>Gas collection apparatus</p> Signup and view all the answers

    What is the characteristic of the gas produced in the investigation?

    <p>It burns with a 'pop' sound when exposed to a flame</p> Signup and view all the answers

    What is the role of the magnesium ribbon in the investigation?

    <p>To react with the hydrochloric acid</p> Signup and view all the answers

    What is the type of acid used in the investigation?

    <p>Hydrochloric acid</p> Signup and view all the answers

    What do the bubbles formed in the test tube indicate?

    <p>The production of a gas</p> Signup and view all the answers

    What is the purpose of using a lit match or lighter in the investigation?

    <p>To test the flammability of the gas produced</p> Signup and view all the answers

    What is the byproduct of the reaction between hydrochloric acid and magnesium?

    <p>Hydrogen gas</p> Signup and view all the answers

    How many steps are involved in the procedure of the investigation?

    <p>5</p> Signup and view all the answers

    What is the apparatus used to hold the test tube?

    <p>Test tube rack</p> Signup and view all the answers

    What is the purpose of the investigation in this chapter?

    <p>To observe the reaction between an acid and a metal</p> Signup and view all the answers

    What is the significance of the 'pop' sound when the gas is exposed to a flame?

    <p>It confirms the presence of hydrogen gas</p> Signup and view all the answers

    What is the material used to collect the gas produced in the reaction?

    <p>Gas collection apparatus</p> Signup and view all the answers

    What is the role of the magnesium ribbon in the investigation?

    <p>To react with the hydrochloric acid</p> Signup and view all the answers

    What is the type of gas produced in the reaction?

    <p>Hydrogen gas</p> Signup and view all the answers

    What is the purpose of adding a small amount of hydrochloric acid to the test tube?

    <p>To react with the magnesium ribbon</p> Signup and view all the answers

    What is observed during the reaction?

    <p>The formation of bubbles</p> Signup and view all the answers

    What is the equipment used to hold the test tube in place?

    <p>Test tube rack</p> Signup and view all the answers

    What is the significance of the bubbles formed in the test tube?

    <p>They indicate the production of a gas</p> Signup and view all the answers

    What is the acid used in the investigation?

    <p>Hydrochloric acid</p> Signup and view all the answers

    What is the primary purpose of the reaction between hydrochloric acid and magnesium?

    <p>To produce hydrogen gas</p> Signup and view all the answers

    Which of the following is a key difference between the work of a chemist and a pharmacist?

    <p>The focus on research versus healthcare</p> Signup and view all the answers

    What is the primary role of a chemist in a pharmaceutical company?

    <p>To develop new products</p> Signup and view all the answers

    What is the name of the compound formed when magnesium reacts with hydrochloric acid?

    <p>Magnesium chloride</p> Signup and view all the answers

    What is the primary difference in the education of chemists and pharmacists?

    <p>The field of study</p> Signup and view all the answers

    What is the primary workplace difference between chemists and pharmacists?

    <p>The healthcare versus research environment</p> Signup and view all the answers

    What is the significance of the bubbles formed in the reaction between hydrochloric acid and magnesium?

    <p>They indicate the presence of hydrogen gas</p> Signup and view all the answers

    What is the role of the hydrogen atoms in the reaction between hydrochloric acid and magnesium?

    <p>They combine to form hydrogen gas</p> Signup and view all the answers

    What is the primary responsibility of a pharmacist in a healthcare setting?

    <p>To dispense medications and provide patient counseling</p> Signup and view all the answers

    What is the main difference between the reaction between hydrochloric acid and magnesium, and the reaction between other acids and metals?

    <p>The type of salt formed</p> Signup and view all the answers

    What is the primary purpose of the investigation in this chapter?

    <p>To observe the reaction between an acid and a metal</p> Signup and view all the answers

    What is the significance of the 'pop' sound when the gas is exposed to a flame?

    <p>It confirms the presence of hydrogen gas</p> Signup and view all the answers

    What is the purpose of adding a small amount of hydrochloric acid to the test tube?

    <p>To initiate the reaction between the acid and metal</p> Signup and view all the answers

    What is the role of the magnesium ribbon in the investigation?

    <p>To react with the hydrochloric acid to produce hydrogen gas</p> Signup and view all the answers

    Why is the gas collection apparatus used in the investigation?

    <p>To collect the gas produced for further analysis</p> Signup and view all the answers

    What is observed during the reaction?

    <p>The formation of bubbles</p> Signup and view all the answers

    What is the significance of the bubbles formed in the test tube?

    <p>They indicate the production of a gas</p> Signup and view all the answers

    What is the type of gas produced in the reaction?

    <p>Hydrogen gas</p> Signup and view all the answers

    Why is a lit match or lighter used in the investigation?

    <p>To confirm the presence of hydrogen gas</p> Signup and view all the answers

    What is the primary purpose of the test tube in the investigation?

    <p>To contain the reaction between the acid and metal</p> Signup and view all the answers

    What is the primary reason why hydrogen atoms combine to form hydrogen gas in the reaction between hydrochloric acid and magnesium?

    <p>To escape as a gas</p> Signup and view all the answers

    What is the key similarity between the work of a chemist and a pharmacist?

    <p>Both deal with chemicals</p> Signup and view all the answers

    What is the primary difference between the chemical equation and the word equation for the reaction between hydrochloric acid and magnesium?

    <p>The chemical equation uses symbols and formulas</p> Signup and view all the answers

    What is the primary role of a chemist in a research institution?

    <p>To conduct research and analyze substances</p> Signup and view all the answers

    What is the primary reason why pharmacists work in clinical and retail environments?

    <p>To dispense medications</p> Signup and view all the answers

    What is the primary difference between the education of chemists and pharmacists?

    <p>Pharmacists are licensed healthcare professionals</p> Signup and view all the answers

    What is the primary focus of a chemist's research?

    <p>The science of chemicals and their reactions</p> Signup and view all the answers

    What is the primary role of magnesium in the reaction with hydrochloric acid?

    <p>To react with the acid</p> Signup and view all the answers

    What is the primary characteristic of the gas produced in the reaction between hydrochloric acid and magnesium?

    <p>It is a colorless gas</p> Signup and view all the answers

    What is the primary purpose of the reaction between hydrochloric acid and magnesium?

    <p>To study the properties of chemicals</p> Signup and view all the answers

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