2021
Which of the following statements is correct about ionization energy? It
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2021 WAEC SSCE Chemistry Past Questions
2021
Which of the following species has the largest ionic radius
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2021
What is the empirical formula of a hydrocarbon containing 0.160 moles of carbon and 0.640 moles of hydrogen
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2021
What is the concentration of a solution which contains0.28g of potassium hydroxide in 100 cm\(^{3}\) of solution [KOH = 56]
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2021
Student X titrated 25 cm\(^{3}\) of Na\(_{2}\)CO\(^{3}\) with 0.1 mol dm\(^{-3}\) HCI, using methyl orange as an indicator. Student Y carried out the same exercise but used phenolphthalein as an indicator. Which of the f…
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2021
The 25°C evaporation of a 100 cm\(^{3}\) solution of K\(_{2}\)CO\(_{3}\) to dryness gave 14g of the salt. What is the solubility of K\(_{2}\)CO\(_{3}\) at 25°25C? [K\(_{2}\)CO\(_{3}\) = 138]
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2021
The Bohr model of the atom proposed the existence of?
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2021
How many coulombs of electricity would liberate 1.08g of Ag from a solution of silver salt?[Ag = 108.0; 1F = 96500 C]
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2021
The reactivity of fluorineis high because of
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2021
Consider the following diagram and use it to answer the question belowWhich of the following half reaction equations represent the reaction at the cathode
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2021
Consider the following diagram and use it to answer the question below:Which of the following cell notations represent the diagram
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2021
Which of the following statements about Group VII elements is correct?
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2021
Elements with high ionization energies would-------
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2021
The collision between ideal gas molecules are consideredto be perfectly elastic because
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2021
Under which conditions of pressure (p) and temperature (T) would the volume of an inflated ballon increase? When
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2021
Consider the structure belowHow many carbon atoms does the parent chain contain?
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2021
When CuSO\(_{4(aq)}\) is added to Pb(NO\(_{3}\))\(_{2(aq)}\)--------
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2021
What would be observed when aqueous ammonia is added in drops and then in excess to a solution of copper(II) ions?
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2021
The basic property of salts used as drying agents is by?
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2021
What number of moles of oxygen would exerta pressure of 10 atm at 320 K in an 8.2 dm\(^{2}\) cylinder?[R = 0.082 atm dm\(^{3}\)mol\(^{-1}\) K\(^{-1}\)]
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