Exothermic answer h - Study guides, Class notes & Summaries

Chemistry Thermochemistry Study Guide Test. The specific heat of iron metal is .450 J/g-K. How many J of heat are necessary to raise the temperature of a 1.05 kg block of iron from 25C to 88.5C? - CORRECT ANSWER (.450) (1050) (63.5) = 30,000.75 J/g How much heat energy, in Joules, is absorbed when 150 grams of water is warmed from 34.8C to 96.3C? - CORRECT ANSWER (150) (4.184) (61.5) = 38,597.4 J/g A chunk of silver has a heat capacity of 42.8J/C. If the silver has a mass of 181 grams...

ASU BIO 181 Exam Questions 100% Marking Scheme All Answers Here!!!! Which six elements are most important for the survival of life? - Answer -H, C, N, O, P, S The shared biochemistry of all life is often considered evidence for: - Answer -Shared common descent of all life on earth. Water has which property or properties? - Answer -Hydrophilic Forms hydrogen bonds Ocean acidification is resulting due to - Answer -Global release of CO2 through the use of fossil fuels Which other e...

Honors Chemistry Test 2 Questions with Answers Two reactant particles collide with proper orientation. The collision will be effective if the particles have - Answer-sufficient kinetic energy Given the equation: I2(s)--> I2(g) Which phrase describes this change? - Answer-endothermic physical change Given the balanced equation representing a reaction: Cu + S --> CuS + energy Which statement explains why the energy term is written to the right of the arrow? - Answer-Energy is release...

General Chemistry II Final Exam (ACS) UVU 273 Questions with Verified Answers If the pressure of a gas is increased at constant temperature, the volume ___. - CORRECT ANSWER Decreases If the pressure of a gas is decreased at constant temperature, the volume ___. - CORRECT ANSWER Increases If the volume of a gas is decreased at constant pressure, the temperature ___. - CORRECT ANSWER Decreases P ? T ? V ? - CORRECT ANSWER Pressure does the opposite of volume. Which of the following...

OCR A LEVEL ORGANIC CHEMISTRY YEAR 12 WITH VERIFIED QUESTIONS AND ANSWERS What is the melting and boiling points of alkanes like? - ANSWER--as chain length increases so does the strength of the intermolecular forces as there is greater surface area for contact between molecules and hence stronger london forces and therefore the melting/boiling points are highr for longer chain. What is a structura/chain isomer? - ANSWER--Same molecular formula but a different structural formula Wh...

TEAS 6 SCIENCE- LIFE + PHYSICAL SCIENCES Questions And Answers 100% Rated A+. Name the 4 basic organic macromolecules. What are they produced by? - correct answer. 1. carbohydrates 2. lipids 3. proteins 4. nucleic acids *produced by anabolic reactions Name the 4 basic building blocks. What type of reactions are they involved in? - correct answer. 1. monosaccharides (glucose) for cabohydrates 2. amino acids for protein 3. fatty acids (glycerol) for lipids 4. nu...

Chemical Thermodynamics 4.13 Unit Test || Questions & Answers (Rated A+) Chemical Thermodynamics 4.13 Unit Test || Questions & Answers (Rated A+) Which example is an exothermic reaction? - ANSWER - condensation Two objects (A and B) of the same temperature are in contact with each other. Which statement is true? - ANSWER - Although the molecules collide, no heat transfers because there is no temperature difference between the objects Which parameter is measured directly in a coffee-cu...

The speed of a wave (c) is the product of its frequency (ν) and wavelength (λ). Correct Answer: E = hv = h x c / λ nm to m or m to nm Correct Answer: 1 m / 10^9 nm or 10^9 nm / 1 m What is the maximum number of electrons that can have the quantum numbers n = 3, ℓ = 2, mℓ = -2? Correct Answer: The Pauli exclusion principle states that no two electrons in a given atom can share the same set of four quantum numbers (n, ℓ, mℓ, ms). This set of quantum numbers contains three...

WGU Biochemistry OA Exam Questions And Correct Answers Bohr Effect chart (low pH) - answerC- High CO2 H- High H+ A- Acidic R-Release of O2(rt. Shift) T- tense state (in tissues) Primary structure - answerSequence of amino acids that make up a protein Secondary Structure - answerSequence of amino acids fold. Tertiary Structure - answer-more folding in a 3D shape. -R groups (side chains) Quaternary Structure - answerProtein has more than 1 polypeptide chain. Chemical reaction - answer-...

Chemistry Thermodynamics Test Review || All Questions & Answers (Graded A+) Chemistry Thermodynamics Test Review || All Questions & Answers (Graded A+) What is the change in entropy? - ANSWER - Delta S What is the change in free energy? - ANSWER - Delta G What is the change in enthalpy? - ANSWER - Delta H What heat received by the chemical system from its surroundings? - ANSWER - Q as in Q=mcp(delta)T The internal energy of a system is ____ of the path taken in going from the ini...