Solid solution alloys - Study guides, Class notes & Summaries

Chemical Thermodynamics Practice Questions with complete Solutions Graded A+ Reactions for this lab - Answers H2 (g) + 1/2 O2 → H2O (l) (heat of formation of water) (a) Mg (s) + 2 HCl(aq) →MgCl2 (aq) + H2 (g) (b) Ha= -68.3 kcal/ mol MgO(s) + 2HCl (aq) -> MgCl2 (aq) + H2O (l) (c) Mg(s) + 1/2 O2 (g) --> MgO(s) (d) Hd= Hf (MgO) = Hb - Hc + Ha = Hb - Hc + (68.3 kcal/mol) Why is it very difficult to measure the heat of formation of MgO? - Answers Because without a pure oxygen...

NACE CIP 1 EXAM Practice Questions with Correct Answers Latest 2023 | 2024 (Graded) Anode the electrode at which oxidation occurs. electrons flow away from the the anode in the external circuit. corrosion usually occurs and metal ions enter the solution at the anode cathode the electrode at which reduction occurs. electrons flow towards the cathode in the external ciruit cathodic protection A technique to reduce the corrosion of a metal surface by making that surface the cathode of a...

NACE CIP 1 EXAM Practice Questions with Correct Answers Latest 2023 | 2024 (Graded). Anode - answerthe electrode at which oxidation occurs. electrons flow away from the the anode in the external circuit. corrosion usually occurs and metal ions enter the solution at the anode cathode - answerthe electrode at which reduction occurs. electrons flow towards the cathode in the external ciruit cathodic protection - answerA technique to reduce the corrosion of a metal surface by making that surf...

AQA GCSE Chemistry - Paper 1 What is the charge of a proton? Ans- +1 What is the charge of a neutron? Ans- 0 What is the charge of an electron? Ans- -1 What is the relative mass of a proton? Ans- 1 What is the relative mass of a neutron? Ans- 1 What is the relative mass of an electron? Ans- Very small How many types of atoms do elements contain? Ans- Only one type What are compounds? Ans- Substances containing two or more different elements that are chemically bonded together What are...

2023 HESI A2 Chemistry Exam Test Ionic Bond - CORRECT ANSWER-is a chemical bond that has a relatively weak attraction between an anion and cation. Ionic bonding is a type of chemical bond that involves the electrostatic attraction between oppositely charged ions. These ions represent atoms that have lost one or more electrons (known as cations) and atoms that have gained one or more electrons (known as anions). Covalent Bond - CORRECT ANSWER-is a chemical bond that shares one or more ...

2023 HESI A2 Chemistry Exam Test Ionic Bond - CORRECT ANSWER-is a chemical bond that has a relatively weak attraction between an anion and cation. Ionic bonding is a type of chemical bond that involves the electrostatic attraction between oppositely charged ions. These ions represent atoms that have lost one or more electrons (known as cations) and atoms that have gained one or more electrons (known as anions). Covalent Bond - CORRECT ANSWER-is a chemical bond that shares one or more pair...

A 0.5 mole sample of He(g) and a 0.5 mole sample of Ne(g) are placed separately in two 10.0 L rigid containers at 25 ℃. Each container has a pinhole opening. Which of the gases, He(g) or Ne(g), will escape faster through the pinhole and why? - ANSWER He(g) will escape faster because the He(g) atoms are moving at a higher average speed than the Ne(g) atoms. The lattice energy of a salt is related to the energy required to separate the ions. For which of the following pairs of ions is the ene...

HESI A2 Chemistry test 1. What makes an atom's physical structure? - Correct answer A nucleus and orbits(sometimes known as electron clouds)" 2. "What composes the center of the atom? - Correct answer Protons and neutrons" 3. "What spins in the orbits of an atom? - Correct answer Electrons" 4. "What are the energy levels of the atom called? - Correct answer Shells or orbits" 5. "What is the term used to define an atom that is electrically charged? - Correct answer Ionic...

Enamel and dentin are poor ___________________ compared to amalgam and gold alloys* - ANSWER-thermal conductors What is a materials ability to conduct temperature changes? - ANSWER-thermal conductivity What is the shrinkage or expansion of a material usually expressed as a percentage of an original length or volume? - ANSWER-Dimensional change What is a thermal property of material that quantifies how much a material will expand when heated and contract when cools? - ANSWER-Coefficient ...

ASVAB Test 426 Questions with Verified Answers The function of an enzyme is to ___ - CORRECT ANSWER speed up a chemical reaction one kilogram mass is dropped from a heigh of 1 meter. its kinetic energy just before it hits the ground is about ___ - CORRECT ANSWER 10 joules the DNA of a cell is found mainly in its ___ - CORRECT ANSWER chromosomes most cells without a cell wall also lack ___ - CORRECT ANSWER chloroplasts the cells that can easily be scraped from the lining of the mou...