In a major development, Nigeria’s House of Representatives has directed the Federal Ministry of Education and WAEC to suspend the transition to computer‑based testing (CBT) for the 2026 West African Senior School Certificate Examination (WASSCE). The directive signals a significant delay—no CBT will be introduced until at least 2030 The decision followed a motion of urgent public importance raised by Kelechi Wogu, which expressed grave concern about students’ readiness. He raised low infrastructure levels, especially in rural areas, pointing out that many schools lack computers, reliable electricity, and qualified tech teachers. Why the Delay? WAEC is expected to run the 2026 exam across roughly 25,500 schools. With the four‑month examination window and the requirement to cover multiple subjects—including practicals—the House argued the shift to CBT could lead to mass failure, stress and “depression and deaths of students.” As a result, the House asked t...
Stoichiometry is the quantitative study of the reactants and products involved in a chemical reaction. Stoichiometry is also the calculation of products and reactants in a chemical reaction. It deals with the number of products and reactants involved in a chemical reaction. Importance of Chemical Stoichiometry It helps chemists to use balanced chemical equations to determine the moles of reactants and products in a chemical reaction. It helps to determine the mass of reactants and products required or present in a chemical reaction. It helps chemists measure the molecular weight of substances. It helps to measure the formulae. Basic Concepts of Stoichiometric Reaction In a stoichiometric reaction, there are some basic things to note to make it easier to understand. We can get the pictures of these things by considering the equation below: 3Fe(S) + 4H2O(I) → Fe3O4(S) + 4H2(g) The stoichiometric coefficient of this chemical reaction ...