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Chemistry 100 Exam 2 Questions With 100% Verified Answers
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---4mei 20262025/2026A+
- 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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---5mei 20262025/2026A+
- 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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---4mei 20262025/2026A+
- 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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---2mei 20262025/2026A+
- 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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---2mei 20262025/2026A+
- 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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CHEM 100 - EXAM #2 Questions And Answers Solved Solution Guaranteed
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---20mei 20262025/2026A+
- what happens to the KE of a moving bus as it comes to stop? - correct answers it is converted into heat 
 
an example of an endothermic process is: 
A.) digestion of food 
B.) burning of coal 
C.) melting of ice 
D.) all of the above - correct answers C 
 
in an experiment, if the initial temperature is 72.1C and the final temperature is 26.9C, what is the temperature change for this experiment? - correct answers -45.2C 
 
in which of the following is energy (heat) released? 
A.) evaporation of ...
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Chemistry 100-Exam 2-Study Guide Questions With Correct Detailed Answers
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---7mei 20262025/2026A+
- Protons and Neutrons make up the? - correct answers Nucleus 
 
Masses and charges are? - correct answers Subatomic Particles 
 
Mass (kg): 1.67262 x 10^-27 
Mass (amu): 1.0073 
Charge: 1+ - correct answers Proton 
 
Mass (kg): 1.67493 x 10^-27 
Mass (amu): 1.0087 
Charge: 0 - correct answers Neutron 
 
Mass (kg): 0.00091 x 10^-27 
Mass (amu): 0.00055 
Charge: 1- - correct answers Electron 
 
Left side of the periodic table, makes up 75% of the periodic table - correct answers Metals 
 
Occupy up...
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chem 100 exam 2 questions and accurate answers guaranteed pass
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---4mei 20262025/2026A+
- polar covalent bond - correct answers anything from 0.4-1.9 (arrow on polar points to highest electronegativity) 
 
polar bonds - correct answers covalent bonds with uneven distributions of electrons 
 
chemical reactions - correct answers reactants (starting substance) -> products (new substance) 
 
electronegativity - correct answers the ability of an atom to attract electrons in a covalent bond. 
~greater difference in value makes it more polar 
~atoms of equal electronegativity values do ...
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