Gen chem - Study guides, Class notes & Summaries

Gen Chem 1 Final Exam Review – Saylor Questions and Answers Which of the following is a correct feature of the nuclear atom proposed by Rutherford? A) The atom is mostly empty space, most of the mass of an atom is concentrated in its nucleus. B) All atoms of an element have the same mass. C) It is like the "plum pudding" model. D) The majority of alpha particles to strike the foil "bounded back" E) The number of neutrons and electrons in the atom are equal. The atom is mostl...

ACS GEN CHEM 1 FINAL

ACS Gen Chem 1 Exam 89 Questions with Verified Answers Extensive Property - CORRECT ANSWER Values that depend on how much you have Intensive property - CORRECT ANSWER Independent of size sample Density - CORRECT ANSWER Mass/volume Homogeneous mixture - CORRECT ANSWER Same throughout, indistinguishable parts Heterogeneous - CORRECT ANSWER Different parts, distinguishable parts Diatomic elements - CORRECT ANSWER N2, O2, H2, Cl2, Br2, I2 John dalton - CORRECT ANSWER Founded the...

Gen Chem Equations to study for the ACS Exam 28 Questions with Verified Answers Rydberg Equation for Hydrogen - CORRECT ANSWER Speed of Light/Wavelength/Frequency Equation - CORRECT ANSWER Speed of Light (3 x 10^8) Energy of a Single Quantum - CORRECT ANSWER E = hv v = frequency (c/λ) h = Planck's Constant (6.26 x 10^-34) Photoelectric Effect Equation - CORRECT ANSWER hv = KE + W h = Planck's Constant (6.26 x 10^-34) W = binding energy of the electron Electrostatic E...

Matter Most basic building block. Must have mass and volume Elements Simplest form of matter, can't decompose any further Molecules Two or more atoms "linked" together Compounds Mixes of two or more elements bonded together Sig Fig.- x & / As many as the least number Sig Fig.- + & - As many as the least behind the decimal point Law of Definite Composition Components in a compound always have the same ratio by mass Law of Multiple Proportions Ratios of elements that combine to m...

ACS Gen Chem 1 Exam (Based on notes taken after going through the ACS General Chemistry Examination Official Guide. Intended for use on the first-semester exam) 2024

the physical material of the universe. It is anything that has mass and occupies space. CORRECT ANSWER Matter is made up of relatively few elements. CORRECT ANSWER Matter The smallest building block of matter. Smallest particle that retains the chemical property of the element (O, He, S). CORRECT ANSWER Atom Each _______ is made of the same kind of atom CORRECT ANSWER Element Combination of atoms held together in specific shapes CORRECT ANSWER Molecule No fixed volume or shape, co...

the physical material of the universe. It is anything that has mass and occupies space. - Matter is made up of relatively few elements. - Matter The smallest building block of matter. Smallest particle that retains the chemical property of the element (O, He, S). - Atom Each _______ is made of the same kind of atom - Element Combination of atoms held together in specific shapes - Molecule No fixed volume or shape, conforms to volume and shape of container, is compressible - Gas Individua...

C - correct answer Where is the hydrophilic (attracted to water) region of the molecule? (A) Region 1 (B) Region 2 (C) Region 3 (D) The three regions are equally hydrophilic C - correct answer Which molecule is most soluble in water? D - correct answer A solution of NaCl in water has a concentration of 20.5% by mass. What is the molal concentration of the solution? Molar Mass NaCl = 58.44 g/mol (A) 0.205 m (B) 0.258 m (C) 3.51 m (D) 4.41 m B - correct answer What is...