The following statement contained in a student's laboratory report is aconclusion.
Correct answer: D. the gas is chlorine
- A. a gas is liberated
- B. colour of the gas is greenish yellow
- C. oxide of the gas is strongly acidic
- D. the gas is chlorine
Explanation
"The gas is chlorine" - This is a conclusion. It identifies the gas based on its properties and behavior.
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Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
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