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NECTA ChemistryTanzania

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Question 281

Which of the following compounds is a saturated hydrocarbon?
Organic chemistryOrganic Chemistryhard

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Question 282

What type of ion is formed when an acid reacts with a base in a neutralization reaction?
Acids, bases, saltsAcids, Bases and Saltsmedium

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Question 283

Calculate the number of moles in 88 grams of CO₂ (Molar mass of CO₂ = 44 g/mol).
Mole conceptMole concepteasy

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Question 284

How does increasing the concentration of reactants affect the rate of a chemical reaction?
Rates and equilibriumRates and equilibriummedium

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Question 285

For the equilibrium reaction N₂ + 3H₂ ⇌ 2NH₃, what happens when pressure is increased?
Rates and equilibriumRates and equilibriumhard

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Question 286

Which of the following correctly represents the electronic configuration of an oxygen atom?
Atomic structureAtomic structuremedium

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Question 287

How many moles of oxygen atoms are present in 3 moles of CO2?
Mole conceptMole conceptmedium

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Question 288

Which of these is a strong acid?
Acids, bases, saltsAcids, bases, saltseasy

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Question 289

Which organic compound contains a carboxyl functional group (-COOH)?
Organic chemistryOrganic chemistryeasy

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Question 290

At equilibrium in a reversible reaction, which statement is correct?
Rates and equilibriumRates and equilibriumhard

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