Ammonia can be prepared by the following reaction. I will show you the best way to answer the 2020 WAEC Chemistry Practical questions and make a good grade in your Chemistry … WAEC Chemistry Practical Questions and Answers 2020 ALT A & B Update. (a) I2O4 (b) I2O5 (c) I2O7 (d) I2O9. CH4(g) + 2O2(g) arrow CO2(g) + 2H2O(g). So here I am, out of sheer curiosity, taking the chemistry test here on your site, and I found two incorrect answers on your answer key. What is the difference between molarity and molality? Give the net ionic equation for each test. What is the difference between biochemistry and medical biochemistry?

Do not forget to reload this page in order to see the answers. Many WAEC candidates find it difficult to answer the WAEC Practical Chemistry Alternative A and B correctly due to not understanding the questions. Give the conjugate acid for each compound below. Which of the following is an example of an element? Sodium and chlorine are both metals, so they don't form compounds. If the total volume of the gas collected is 245 mL and the total pressure is 758 mm Hg at 25 ^oC, what is the mass of the oxygen gas gener... What is the mass percentage of oxygen in potassium permanganate (KMnO4)? O Level Chemistry: SPA – Possible Practical Questions Several parents and students alike have asked me on the possible practical questions that can come out for the SPA examinations. Calculate the pH of a 3.3 M solution of trimethylacetic acid. 7.52\\c. When water is present in a sample of copper(II) sulfate it turns blue. What is the average atomic mass of oxygen? If 15.0 mL of a 0.200 M NaOH solution is required for neutralization of 5.0 mL of given HCl solution, then, what is the molarity of the HCl solution? What is the molarity of 85.58g of sucrose dissolved in 1.5L of water? Shake thoroughly and feel the test tube. In this article, I will be showing you past WAEC GCE Chemistry Practical Specimen random repeated questions … by what time exactly is the answer coming ?? An important laboratory technique in a chemistry lab is the ability to accurately measure a liquid in a graduated cylinder. Earn Transferable Credit & Get your Degree.

b) nitrite ion. A student measures out 308 mg of benzoic acid on a digital balance. If peak A has a retention time rA=2 min. Stoichiometric ratios of the reactants and products of a reaction can be used to determine the theoretical yield of the reaction. Write a balanced equation showing how this can occur.

How many milliliters (mL) of 6.00 M stock solution are needed to prepare 200. mL of 2.000 M KCl solution? There are single and double replacement reactions, decomposition reactions and synthesis reactions. When is the absorption spectrum of an electron generated? How many moles of CH4 gas are in the sample? 15 x 106 x 0. What is the molarity of a solution made by dissolving 26.42 g of (NH4)2SO4 enough water to make 50 mL of soluti. What is the overall ionic and net ionic equations for this following reaction? College chemistry covers a range of advanced topics, including atomic and molecular science, chemical reactions, states of matter, and thermodynamics. In the chemical equation A + B arrow C + D, which are products? Create an account to browse all assets today, Biological and Biomedical H2SO4(aq) + 2NaOH(aq) arrow 2H2O(l) + Na2SO4(aq). ADS! 6.89\\d.

Show how tetraoxosulphate(IV) can be prepared industrially. This is a collection of questions dealing with conversions between temperature units. What is another term for a carboxyl group? Balance the following equations by inspection: 1.

Calculate molarity of the solution containing 14 g of KOH (MW = 56,1 g/mol) in 100 mL of the solution. Shine your eyes while copying. It is important to understand the arrangement of electrons making up an atom. Thank you so much.�. (adsbygoogle=window.adsbygoogle||[]).push({}); Best Rated Educational Update Portal in the World; Examination and Academic Guide, High Paying Jobs & Scholarship Website, WAEC Chemistry Practical Questions and Answers 2020 ALT A & B Update, KNOCK-OFF DIABETES IN JUST 60 DAYS! You don’t have to hurry through; take as much time as you need to think through each question. I keep getting I doing something wrong? A. trigonal pyramidal B. trigonal planar C. linear D. tetrahedral, Chemistry studies all of the following except: A. relations in groups B. properties of a substance C. composition and structure of a substance D. reactions of a substance. In the following reaction is identify whether each element is being oxidized, reduced, or neither. WAEC 2020 Chemistry Practical Questions: Practical WAEC Expo Questions for Chemistry is out now on our website.

3. He holds bachelor's degrees in both physics and mathematics. Ammonium perchlorate (NH4ClO4) is the solid rocket fuel used by the U.S. Space Shuttle. Review the unit conversion test questions above if you need to brush up on unit conversions.

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