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WAEC ChemistryLiberia

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Question 291

At equilibrium in a closed system, which statement is true?
EquilibriumEquilibriummedium

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Question 292

In redox reactions, oxidation is defined as:
Redox reactionsRedox reactionsmedium

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Question 293

Which type of polymer is formed by addition polymerization?
Polymer chemistryPolymer chemistryhard

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Question 294

What trend is observed in atomic radius across a period in the periodic table from left to right?
PeriodicityPeriodicitymedium

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Question 295

In a chemical reaction, doubling the concentration of a reactant causes the rate to quadruple. What is the order of reaction with respect to that reactant?
Rates of reactions (kinetics)Rates of reactions (kinetics)medium

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Question 296

Which of the following is a characteristic of a buffer solution?
Equilibrium, Acids, bases, saltsAcids, bases, saltseasy

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Question 297

Which of the following statements about polymers is correct?
Polymer chemistryPolymer chemistryhard

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Question 298

Which of the following quantum numbers describes the orientation of an electron's orbital in space?
Atomic structure and quantum numbersAtomic Structure and Quantum Numberseasy

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Question 299

Which type of chemical bond is formed by the complete transfer of electrons from one atom to another resulting in oppositely charged ions?
Chemical bondingChemical Bondingeasy

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Question 300

Which of the following statements correctly describes the relationship between atomic structure and the periodicity of elements in the periodic table?
PeriodicityAtomic structure and periodicitymedium

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