chemistry

CHEM 134 REVIEW Questions and Answers | 2026 Update | 100% Correct. enthalpy (H) -measures the total heat within a system ΔH measures the change in enthalpy or the change in heat state -where 'we are' ; the position ex. enthalpy (H) Gibb's Free Energy (G) Temperature (T) path -how to get there; the 'path

Chem 134 quiz Ch 13 (Properties of Solutions) Questions and Answers | 2026 Update | 100% Correct. The process of solute particles being surrounded by solvent particles is known as __________. A) agglutination B) agglomeration C) solvation D) dehydration E) salutation -C) solvation A saturated solution __________. A) cannot be attained B) contains as much solvent as it can hold C) contains dissolved solute in equilibrium with undissolved solid D) contains no double bonds E) will rap...

CHEM 134 Questions and Answers | 2026 Update | 100% Correct. For the reaction below relate the rate of disappearance of hydrogen to the rate of formation of ammonia. N2(g) + 3H2(g) → 2NH3(g) --Δ[H2]/3 Δt = Δ[NH3]/2Δt The elementary steps for the catalyzed decomposition for dinitrogen monoxide are shown below. Identify the catalyst. NO(g) + N2O(g) → N2(g) + NO2(g) 2NO2(g) → 2NO(g) + O2(g) -NO Ozone in the upper atmosphere is important to life on earth because it converts harmfu...

CHEM 134 LECTURE EXAM 1Questions and Answers | 2026 Update | 100% Correct. What is matter? give examples of matter. -anything that takes up space and has mass. ex: you, trees, water, a house, air What is a substance? ex -A form of matter that has a definite (constant) composition and distinct properties (water, ammonia, sugar, table salt) What is a mixture? ex -is a combination of two or more substances in which the substances retain their distinct identities (constant composition throug...

CHEM 134 LECTURE EXAM 1Questions and Answers | 2026 Update | 100% Correct. What is matter? give examples of matter. -anything that takes up space and has mass. ex: you, trees, water, a house, air What is a substance? ex -A form of matter that has a definite (constant) composition and distinct properties (water, ammonia, sugar, table salt) What is a mixture? ex -is a combination of two or more substances in which the substances retain their distinct identities (constant composition throug...

CHEM 134 LECTURE EXAM 1 Questions and Answers | 2026 Update | 100% Correct. What is matter? give examples of matter. -anything that takes up space and has mass. ex: you, trees, water, a house, air What is a substance? ex -A form of matter that has a definite (constant) composition and distinct properties (water, ammonia, sugar, table salt) What is a mixture? ex -is a combination of two or more substances in which the substances retain their distinct identities (constant composition throu...

CHEM 134 Final Questions and Answers | 2026 Update | 100% Correct. If temp Raises, the reaction is: -exothermic If temp Lowers, the reaction is: -endothermic If the solute releases heat into the water the reaction is: -exothermic If the solute absorbs heat from the water the reaction is: -endothermic -heat released = -heat ab

CHEM 134 Final Questions and Answers | 2026 Update | 100% Correct. If temp Raises, the reaction is: -exothermic If temp Lowers, the reaction is: -endothermic If the solute releases heat into the water the reaction is: -exothermic If the solute absorbs heat from the water the reaction is: -endothermic -heat released = -heat absorbed qsoln = (solute) --qrxn Distance between adjacent waves: -wavelength

CHEM 134 Final Questions and Answers | 2026 Update | 100% Correct. If temp Raises, the reaction is: -exothermic If temp Lowers, the reaction is: -endothermic If the solute releases heat into the water the reaction is: -exothermic If the solute absorbs heat from the water the reaction is: -endothermic -heat released = -heat absorbed qsoln = (solute) --qrxn Distance between adjacent waves: -wavelengt

Chem 134 Final Exam Questions and Answers | 2026 Update | 100% Correct. extensive property vs intensive property -* Extensive: Examples include mass, volume, and length. * Intensive: Examples include density, temperature, and hardness. Rules for determining sig figs - Density = ? -mass / volume Conservation of Mass and Energy -A physical law stating that the total amount of mass and energy remains constant before/after/during a reaction Law of Multiple Proportions -if two or more differ...