Reactant Samenvattingen, Notities en Examens

Chem 162 Final Exam Questions and Answers Latest Updated 2024/2025 (Graded A+) Chemistry definition correct answers Study of structure, properties, transformations of matter Matter correct answers Anything that has mass + takes up space Phases: solid, liquid, gas Condensed phases = solids + liquids Intermolecular Forces (IMF) correct answers = Interactions between molecules/atoms/ions Solution correct answers = Homogenous mixtures of 2+ pure substances In a solution, the solute is disperse...

BIOL 101 Quiz Energy and Information Liberty University Lynchburg Question 1 3.2 / 3.2 pts Which of the following phrases best describes the role of NADPH in photosynthesis? It absorbs light energy. It allows protons across membranes. It carries electrons from one stage of photosynthesis to the other. It converts useless wavelengths of light into more useful ones for photosynthesis. It prevents electron flow when no further energy is needed. Question 2 3.2 / 3.2 pts Each wavelength ...

Limiting Reactants Gizmos Answer Key questions and answers 100% correct The limiting reactant in a chemical reaction is the reactant that A. is used up at the end of the reaction. B. is left over after the reaction. C. has the largest number of atoms. D. has the fewest number of atoms. Correct Answer: A. is used up at the end of the reaction. How many water molecules (H2O) can be produced from 6 molecules of hydrogen gas (white) reacting with 6 molecules of oxygen gas (red)? Which r...

AQA GCSE CHEMISTRY 8462/2H Paper 2 Higher Tier Question Paper + Mark scheme [MERGED] June (2023/2024)(VERIFIED) Mean rate of reaction (with reactant) - ans -Rate of reaction: Quantity of reactant used ---------------------------- Time taken Mean rate of reaction (with product) - ans -Rate of reaction: Quantity of product formed ---------------------------- Time taken Measurements for quantity of product or reactant - ans -Either as mass in g or as volume in cm³ Measurements for ...

Exam 2: BIOS 242 / BIOS242 Review (Latest 2024/ 2025 Update) Fundamentals of Microbiology with Lab| Questions and Verified Answers| 100% Correct| Grade A- Chamberlain Q: what are enzymes? Answer: biological catalysts that increase the rate of a chemical reaction Q: is needed for a reaction to occur Answer: activation energy Q: true or false: enzymes lower the activation energy Answer: true Q: enzymes act on reactant molecules known as Ans...

The limiting reactant in a chemical reaction is the reactant that A. is used up at the end of the reaction. B. is left over after the reaction. C. has the largest number of atoms. D. has the fewest number of atoms. - correct answer Correct Answer: A. is used up at the end of the reaction. How many water molecules (H2O) can be produced from 6 molecules of hydrogen gas (white) reacting with 6 molecules of oxygen gas (red)? Which reactant is...

Kinetics Quiz 3 Study SetAs the relative costs of the reactor increase, which of the following are generally expected to be true for positive order reactions? a. The reactor volume will need to be larger b. Higher conversions will generally be optimal c. A CSTR will be desirable over a PFR d. Lower conversions will generally be optimal e. None of the above - correct answer d. Lower conversions will generally be optimal If reactor costs are relatively expensive as compared to the other cost...

Kinetics - the study of rates of reactions and how they are influenced by certain factors Influences Reactions Rates - Concentration, temperature, catalysts, surface area Temperature/Reaction Rate - Increase, higher temperature provides higher kinetic energy Catalyst/Reaction Rate - Increase, without being consumed Surface Area/Reaction Rate - Increase, increased surface area of particles increases reaction rate because solids only react at their surfaces (grinding solid into fine powde...

Chemistry 101 Final Ivy Tech Exam Questions with 100% Verified Correct Answers Graded A+ Diatomic O2 can react with the element magnesium to form magnesium oxide (MgO). The balanced chemical equation is: O2 + Mg ⟶ 2 MgO If 4 moles of magnesium totally reacted with more than enough O2, how many moles of MgO would be expected to form? A. 8 Moles B. 2 Moles C. 4 Moles D. 1 Mole E. Not Enough Info - Correct Answer C Which of the following is TRUE? A. Stoichiometry allows predic...

AAB MT Chemistry- Practice questions with 100% Correct Answers | Verified | Latest Update 2024 Which of the following aminoacidopathies is NOT caused by an enzyme deficiency? Choose one answer. a. phenylketonuria b. alkaptonuria c. maple syrup disease d. cystinuria - d. cystinuria What method is most commonly used to measure total protein? Choose one answer. a. dye binding b. Kjeldahl c. Biuret d. refractometry - c. Biuret Which of the following is the preferred reagent for measurin...