IGCSE A Level Chemistry MCQs – Practice Test 10 (Chapter 19)
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Free "Moles and Equations Study" App Download (iOS & Android) with MCQ: Magnesium (Mg) burns in oxygen (O2) to form; with answers: magnesium hydroxide (mg(oh)2), magnesium peroxide (mg2o2), magnesium oxide (mgo), and magnesium dioxide (mgo2). Practice Equilibrium Position Quiz Questions, download Apple Book (Free Chapter) to achieve chemistry educational excellence.
MCQ 46: Magnesium (Mg) burns in oxygen (O2) to form:
MCQ 47: The number of electrons (e-) which are needed to complete the outer shell of each atom determines formula of:
MCQ 48: 1 mole of a sodium chloride (NaCl) has number of sodium ions (Na+) equal to:
MCQ 49: The name given to ions containing oxygen (O2) are usually called:
MCQ 50: The sum of protons (p+) and neutrons (n0) in an atom is called its:
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