by Sunday | Sep 24 | NABTEB QUESTIONS
Uses of oxygen. 1. Respiration of plants and animals 2. Burning of fuels in house hold cooking, motor cars, airplanes, space rocket, e.t.c. 3. In welding of metals oxy-ethyne flame. 4. Divers, mountain climbers, and miners use it. 5. In the steel industry to remove...
by Sunday | Sep 24 | NABTEB QUESTIONS
1. Heat potassium trixochlorate V in the presence of manganese iv oxide (as a catalyst) in the ratio 4:1 by mass in a hard test tube fitted with a delivery tube. 2. The oxygen gas produced from the mixture is passed through a U tube containing (anhydrous) calcium...
by Sunday | Sep 24 | NABTEB QUESTIONS
Solution: i. Atomic mass number is the sum of protons and neutrons in an atom e.g. chlorine which has 17 protons and 18 neutrons has a mass 35. ii. Nuclear charge is the sum of proton charges in the nucleus. Na has 11 protons; its nuclear charge is (l). iii. Valency...
by Sunday | Sep 24 | NABTEB QUESTIONS
An atom is the smallest unit/representative/particle of matter made up of electrons, protons and neutrons.
by Sunday | Sep 24 | NABTEB QUESTIONS
3H2 (g) + N2 (g) ⇔ 2NH3(g) ΔH – 49.95 KTmol−¹ Describe, according to Le Chatelier’s Principle how the equilibrium in the above equation will vary when: i. More hydrogen is added. ii. Ammonia is removed iii. The pressure is increase iv. The temperature is decreased...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.