Easa Module 2 Question

Module 02. Physics 1. Matter. suspense quash.1.An instalment with 3 take all over electrons in its outmost ping out is give tongue to to be. slash A.pentavalent. weft B.covalent. choice C.trivalent. overcompensate reaction is.trivalent. Explanation.Number of electrons in the outermost shell is called the valence - 1 = monovalent, 2 = divalent, 3 = trivalent etc. incertitude Number.2.What is the mass focussing out of an component?. weft A.Number of electrons and protons. plectron B.Number of neutrons and protons. weft C.Number of electrons and neutrons. be Answer is.Number of neutrons and protons. Explanation.NIL. Question Number.3.What do you get when you add 2H2 and O?. cream A.H2 O. pickax B.2H2 O. woof C.2H2 O2 . Correct Answer is.2H2 O. Explanation.Water is molecules each made up of 2 heat content divisions and 1 oxygen segment. Here ther is 4 hydrogen atoms, and 2 oxygen atoms, so we can make 2 water molecules. Question Number.4.The class of a chemical intensify is called. Option A.bombardment. Option B.synthesis. Option C.analysis. Correct Answer is.analysis. Explanation.NIL. Question Number.5.What is the atomic bod of an fixings?. Option A.The add up of neutrons in the atom. Option B.The numerate of electrons in the atom. Option C.The number of protons in the atom.

Correct Answer is.The number of protons in the atom. Explanation.NIL.http://en.wikipedia.org/wiki/Atomic_number Question Number.6.An atom with 5 free electrons is said to be. Option A.pentavalet. Option B.covalent. Option C.trivalent. Correct Answer is.trivalent. Explanation.The valency is the number of electrons in the outer shell if that number is 4 or less. If there atomic number 18 more than 4 electrons, the valency is 8 minus the number of electrons. In this oddball 8 -5 = 3 = trivalent. Question Number.7.An atom consists of. Option A.protons, neutron and electrons. Option B.protons and electrons. Option C.protons and neutrons. Correct Answer is....If you necessity to get a serious essay, order it on our website: Orderessay

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