ACS Gen Chem 1 Exam Questions and Answers | 100% Pass

ACS Gen Chem 1 Exam Questions and Answers | 100% Pass Ion - ️️ Correct-A species of an element in which the number of electrons does not equal the number of protons. Isotope - ️️ Correct-Each isotope of an atom has a different number of neutrons. Isoelectric - ️️ Correct-Two atoms with the same charge. Isotopic - ️️ Correct-Two atoms with the same number of neutrons. Transition Metal Orbitals - ️️ Correct-The 4s orbital is filled before the 3d orbital, but listed after. Paramagnetic - ️️ Correct-Atoms that possess a permanent magnetic charge due to the presence of unpaired electrons. Electropositive - ️️ Correct-Tending to lose electrons and form positive ions. Tetrahedral Bond Angle - ️️ Correct-109.5° Resonance Structures - ️️ Correct-Two equally correct arrangements of one molecule's electrons; generally the molecule exists as an average of the two. Polar Molecule - ️️ Correct-A molecule that is mostly positive on one side and mostly negative on the other. TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD OWNER: EMILLYCHARLOTTE COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED FIRST PUBLISHED: SEPTEMBER 2024 2/5 sp³ Orbital - ️️ Correct-An orbital composed of one s orbital and three p orbitals; can hold eight total electrons. Tetrahedral. Trigonal Planar - ️️ Correct-The way that three objects will arrange themselves around a central atom. Non-polar. Free Radicals - ️️ Correct-Compounds with an odd number of electrons in their Lewis Structure. Eg. NO₂ Incomplete Octets - ️️ Correct-Occur in elements that can form stable bonds with less than eight electrons. Eg. BF₃ Expanded Octets - ️️ Correct-Occur in the third row of the periodic table and beyond in elements that can form stable bonds with more than eight electrons. Eg. XeF₂ Hydrogen Bonding - ️️ Correct-When hydrogen is attracted to electronegative atoms. Sigma Bonding - ️️ Correct-Formed by head-on overlapping between orbitals. Coordinate Covalent Bonding - ️️ Correct-A covalent bond in which the two electrons derive from the same atom; occurs most often between Lewis acids and bases. Hybridization - ️️ Correct-Mathematical procedure in which the standard atomic orbitals combine to form new orbitals. sp² Orbital - ️️ Correct-Composed of one s orbital and two p orbitals; can hold six total electrons. Trigonal planar. Pi Bonding - ️️ Correct-Bonding occurs between orbitals that are side-by-side. TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD OWNER: EMILLYCHARLOTTE COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED FIRST PUBLISHED: SEPTEMBER 2024 3/5 sp Orbital - ️️ Correct-Composed of one s and one p orbital; can hold four electrons. Linear. Linear - ️️ Correct-Arrangement of two objects around a central atom. Non-polar. Bent - ️️ Correct-Occurs when one non-bonding pairs and two atoms are arranged around a central atom. Polar. Tetrahedral - ️️ Correct-Arrangement of four objects around a central atom. Non-polar. Trigonal Pyramidal - ️️ Correct-Occurs when three atoms and one non-bonding pair is arranged around a central atom. Polar. Silicon Dioxide - ️️ Correct-Has a unique structure; O-Si-O bonds are always 109.5°. Formal charge - ️️ Correct-V - N - (B/2) where V = total valence e⁻, N = non-bonding e⁻, and B = bonding e⁻. Isomer - ️️ Correct-Two molecules that are composed of the same type and number of elements but are arranged in different ways and have different properties are isomers. Combustion of a Hydrocarbon - ️️ Correct-CxHy + (x + y/4)O₂ → xCO₂ + y/2H₂O