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Chaem 100 exam #2 questions and answers all correct success guaranteed.
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May 2026

2025/2026

A+
Noble gas structure 1) The inertness of the noble gases is due to A) the unique structure of their nuclei. B) the special number of protons and neutrons. C) the bonds they form with other elements. D) the number and arrangement of their electrons. - correct answers D) the number and arrangement of their electrons. 2) A sodium ion Na+, has the same electron configuration as a(n) A) sodium atom. B) chlorine atom. C) neon atom. D) argon atom. - correct answers C) neon atom. 3) A chlo...
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chem 100 exam 2 questions and answers well elaborated
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5

May 2026

2025/2026

A+
Which is the balanced chemical equation showing hydrogen peroxide (H2O2) decomposing into hydrogen (H2) and oxygen (O2)? - correct answers H2O2→H2+O2 Which is the balanced chemical equation for the reaction of nitrogen (N2) with oxygen (O2) to form NO? - correct answers N2+O2→2NO Which is the correct balanced equation for the complete combustion of ethane in excess oxygen? - correct answers 2C2H6+7O2→4CO2+6H2O Calculate the mass of CO2 produced by the combustion of a tank of gasol...
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Chem 100 Exam 2 - Chapters 5-7 Complete Questions With 100%
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7

May 2026

2025/2026

A+
Electronegativity - correct answers Property of an element that indicates how strongly an atom of that element attracts electrons in a chemical bond Electronegativity - correct answers F O N Cl Valence Electron - correct answers Electron in the outermost energy level of an atom Atomic Radius - correct answers Distance between the center of the nucleus of an atom and the outermost electrons. Ionization Energy - correct answers Energy required to remove the most loosely held electron f...
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chem 100 exam 2 questions and correct detailed answers
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May 2026

2025/2026

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The strongest interactions between molecules of ammonia ( NH3) are A) dipole-dipole. B) dispersion forces. C) hydrogen bonds. D) ionic bonds. E) polar covalent. - correct answers C) hydrogen bonds. Significant figures are important because they indicate A) the number of measurements. B) the accuracy of a measurement. C) the accuracy of the conversion factor. D) the precision of a measurement. E) the number of digits on a calculator. - correct answers D) the precision of a measur...
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CHEM 100 exam 2 questions and answers 100% pass.
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5

May 2026

2025/2026

A+
Which should be larger, the potassium atom, K, or the potassium ion, K+? - correct answers The potassium atom, K, with an additional shell of electrons is larger. How can you tell whether an atom within a compound takes on a positive or negative charge? - correct answers Locate the position of the atom in the periodic table. Why are ores so valuable? - correct answers Metals can be efficiently extracted from them. Atoms of metallic elements can form ionic bonds, but they are not very go...
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Chemistry 100 Exam 2 Questions With 100% Verified Answers
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May 2026

2025/2026

A+
The elements in a column of the periodic table are known as - correct answers a group Which of these elements is chemically similar to oxygen? A) Sulfur B)calcium C)iron D)nickel E)none of these - correct answers A)Sulfur bc, they are in the same group Which of the following elements are the least reactive? A) Alkali metals B) Noble gases C) Halogens D) Alkaline earth metals E) Metalloids - correct answers B) Noble gases An exothermic reaction causes the surroundings to... A) warm up B)...
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CHEM 100 EXAM 2 Questions And Answers Solved Graded A+
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May 2026

2025/2026

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The mass of the particle doesn't weigh enough to worry about. - correct answers Electron The mass of the particles is 1 a.m.u. - correct answers Proton This particle is located outside the nucleus - correct answers Electron This particle is found only in the nucleus - correct answers Proton and Neutron This particle has a charge of -1 - correct answers Electron This particle has no charge - correct answers Neutron This particle has a charge of +1 - correct answers Proton ...
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Chem 100 exam 2 la tech eddy exam questions with 100% correct answers
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4

May 2026

2025/2026

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chemical bonds - correct answers compounds are composed of atoms held together by ______ _______. this is the result of electrostatic attraction between atoms. 2 types: covalent and ionic ionic bonds - correct answers -an electrostatic attraction between ions of opposite charge -metal + nonmetal -metal loses electrons and the nonmetal gains electrons covalent bonds - correct answers -an electrostatic attraction between two or more atoms that are sharing electrons -nonmetal + nonmetal -...
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CHEM 100 Exam 2 Questions With 100% Guaranteed Answers A+ Pass.
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2

May 2026

2025/2026

A+
oxyacid - correct answers an acid with a main atom, oxygen, and one or more hydrogen atom Acid - correct answers a substance that has a proton that can be removed by a water molecule when in a water solution Hydronium ion - correct answers H₃O⁺ positively charged hydrated hydrogen ion produced when an acid ionizes in water what can X (a negatively charged ion produced when the acid ionizes) be? - correct answers - may be a monatomic ion (Ex: Cl⁻) - may contain oxygen (Ex: NO₃)...
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Chemistry 100 Exam 2 Questions With Detailed Answers Pass Guaranteed
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2

May 2026

2025/2026

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Octet rule - correct answers Atoms lose, gain, or share electrons to become a stable, noble gas 2 - correct answers How many electrons must be lost by a main group element to form a cation with a 2+ ionic charge? 82 - correct answers How many total electrons are present in the polyatomic ion, hydrogen phosphate HPO42-? Ca^2+ - correct answers What is the ion symbol for an atom with twenty protons and eighteen electrons c.) Iron and chlorine - correct answers Which of the following pa...
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