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Questions and Answers
What is the primary purpose of a word-equation?
What is the primary purpose of a word-equation?
- To show the chemical formula of the reactants
- To describe the process of the reaction
- To list the reactants and products (correct)
- To calculate the amount of oxygen used
Which side of the arrow do the reactants occupy in a word-equation?
Which side of the arrow do the reactants occupy in a word-equation?
- Right-hand side
- Left-hand side (correct)
- Bottom of the equation
- Top of the equation
What is the common characteristic of all the three activities?
What is the common characteristic of all the three activities?
- Evolution of a gas
- Evidence of a chemical reaction (correct)
- Change in temperature
- Formation of a white powder
What is the direction of the arrowhead in a word-equation?
What is the direction of the arrowhead in a word-equation?
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What is the product of the reaction between magnesium ribbon and oxygen?
What is the product of the reaction between magnesium ribbon and oxygen?
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What is the change observed in the conical flask or test tube during Activity 1.3?
What is the change observed in the conical flask or test tube during Activity 1.3?
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What is the purpose of adding potassium iodide solution to lead nitrate solution?
What is the purpose of adding potassium iodide solution to lead nitrate solution?
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What is the purpose of the plus sign (+) in a word-equation?
What is the purpose of the plus sign (+) in a word-equation?
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What is formed during the reaction in the example given?
What is formed during the reaction in the example given?
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What is the advantage of writing chemical reactions in symbolic form?
What is the advantage of writing chemical reactions in symbolic form?
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