HA’YHWH YESHUA HAMASCHIAC SCHOOL, YHWH HAMASCHIAC Birth Season/ 1st Term. Chemistry Examination. 2022

Length: 10 minutesAuthor: Vera AigbonogaComplexity: Easy

Time: 2 hours   hypothesis (c) experiment (d) pattern Career prospects in chemistry includes all the following EXCEPT (a) Biochemistry (b) Quality control (c) Accounting (d) Metallurgy An apparatus in the laboratory in which the preparation of poisonous gases is done is called (a) distillation tank (b) Aspirator bottle (c) fume cupboard (d) bell jar ….  Read More

HA’YHWH YESHUA HAMASCHIAC SCHOOL, Resurrection Day/ Second Term SS1 Chemistry, 1st Continuous Assessment Test. 2023.

Length: 10 minutesAuthor: Vera AigbonogaComplexity: Easy

Annswer all the questions.  CHEMISTRY 1. Balance the following equations: (a) KClO3(s) → KCl(s) + O2(g) (b) ZnCO3(s) + HCl(aq) → ZnCl(aq) + H2O + CO2(g) 2. Balance the following equation: H2SO4 + Na2CO3 → Na2SO4 + H2O + CO2 Ca(OH)2 + CO2 → CaCO3 + H2O 3. State the following Chemical laws: A. Law ….  Read More

HA’HA’YHWH 🛐 YESHUA🛐 HAMASCHIAC🛐 School, 2nd/ Resurrection Day /Second Term, SS1 Chemistry Examination . 2022/2023 Academic Year

Length: 10 minutesAuthor: Vera AigbonogaComplexity: Easy

    CHEMISTRY Objective  Questions. A vessel contains 1.6 moles of oxygen gas. Calculate the number of molecules of the gas [Avogadro’s constant = 6. 023 x 1023]. a. 3.76 x1023 b. 9.64 x 1023 c. 19.30 x 1023 d. 12 x 1023 Which of the following compounds has the least relative molecular mass? [ ….  Read More