Ionic bonds Study guides, Revision notes & Summaries

Portage Learning CHEM 210 exams 1-8 and final exam Question 1 3 / 3 pts True or False: According to the Module, a compound with a molecular mass of 1,000 g/mol is considered a macromolecule. True Correct! False Question 2 3 / 3 pts True or False: Biomolecules can have only two functional groups. True Correct! False Question 3 3 / 3 pts True or False: The following functional group is an alcohol. True Correct! False Question 4 3 / 3 pts True or False: In ...

m   1. Which of the following is the mRNA start codon in most cases? A. UAA B. AGU C. AUG D. UGA 2. Which of the types of RNA is the smallest? A. mRNA B. tRNA C. rRNA D. 3. Which of the following is not considered a pyrimidine? A. C B. T C. U D. G 4. Which of the following is paired correctly? A. A-G B. C-G C. A-U D. G-T 5. Which of the following characterizes a Western blot? A. Antibody/protein hybridization B. DNA/RNA combination C. RNA ...

Chapter 02 The Chemistry of Life Answer Key True / False Questions 1. Minerals are organic elements extracted from the soil by plants. FALSE Accessibility: Keyboard Navigation Blooms Level: 1. Remember Gradable: automatic HAPS Objective: O01.01e List the important dietary minerals and describe the major uses of each mineral in the body. HAPS Topic: Module O01 Nutrition. Learning Outcome: 02.01c State the functions of minerals in the body. Section: 02.01 Topic: Atoms and molecules 2. Molecules co...

GFCI stands for... - Answer-Ground Fault Circuit Interrupter T/F A galvanic isolator WILL block stray AC. - Answer-False. A galvanic isolator WILL NOT block AC. It will only blocks stray DC that is moving through the green grounding conductor. T/F An isolation transformer makes a galvanic isolator unnecessary. - Answer-True. An isolation transformer works through electromagnetic _________. - Answer-Induction A reverse polarity indicator is placed between which two wires? Why? - Answer-White...

Version 1 1 CHAPTER 1 1) Which technique creates a three-dimensional dynamic image of blood vessels? A) Digital subtraction angiography B) Magnetic resonance imaging C) Dynamic spatial reconstruction D) Positron emission tomography 2) Magnetic resonance imaging is based on the movement of A) electrons in a magnetic field. B) carbons in a magnetic field. C) protons in a magnetic field. D) cells in a magnetic field. 3) The delivery of a radioactive compound to the body to study the met...

BIOL 111 FINAL TAMU – FLETCHER QUESTIONS AND ANSWERS 100% SOLVED The element present in all organic molecules is Carbon Cell membranes have distinct inside and outside faces. Which of the following statements is the most likely explanation for the membrane's asymmetrical nature? The two sides of a cell membrane face different environments and carry out different functions Which of the following statements is true about buffer solutions? They maintain a relatively constant pH when either aci...

The attractions between atoms within a molecule of NH3 are best characterized as A. hydrogen bonds B. ionic bonds C. polar covalent bonds D. London (dispersion) forces E. ion-dipole forces Correct Answer-polar covalent bonds R(g) + 2T(g) ⇌ 2X(g) + Z(g) The reaction mixture above is at equilibrium at 298 K. The value of the equilibrium constant for the reaction is 16 at 298K. If R(g) , X(g) and Z(g) each have an equilibrium concentration of 2.0 M, what is the equilibrium concentrati...

BCH4024 Exam 1 Purich Questions & Answers 2023/2024 Basic Structure of water - ANSWER--large dipole moment -very polar that interactions between H2O molecules are strong--high heat capacity -liquid water=H-bonds are relentlessly made and broken; thus a flickering collection of W5 structures, with extremely little W1 -each water molecule can form up to 4 H-bonds -liquid water has 3.4 H-bonds on average -ice has 4 H-bonds H-bond - ANSWER-stable interaction occurring when 2 EN atoms shar...

describe the basic functions all life forms must accomplish -response to environmental stimuli & maintain homeostasis -uptake and processing of nutrients/energy -regulation -growth and reproduction compare and contrast eukaryotic and prokaryotic cell types Prokaryotes: -circular chromosomes, no nucleus, no organelles, 3.5 bya -DNA concentrated in nucleoid Eukaryotes: -linear chromosomes, nucleus, organelles, 1.5 bya -DNA concentrated in nucleus Both: -cellular function takes p...

Chem 103 Module 1 to 6 Exam with Verified answers (100 OUT OF 100) Portage learning (Latest Update) MODULE 1 EXAM Question 1 Click this link to access the Periodic Table. This may be helpful throughout the exam. 1. Convert 845.3 to exponential form and explain your answer. 2. Convert 3.21 x 10-5 to ordinary form and explain your answer. 1. Convert 845.3 = larger than 1 = positive exponent, move decimal 2 places = 8.453 x 102 2. Convert 3.21 x 10-5 = negative exponent = smalle...

The most common isotope of hydrogen has one proton, no neutrons, and one electron. An isotope of hydrogen with 1 neutron would have: - Answer- an atomic number of 1 and a mass number of 2 In a covalent bond: - Answer- electrons are shared between atoms so that all atoms have full outer shells A property of a system that is present at one level of organization but absent at the levels below is called: - Answer- an emergent property An ionic bond is - Answer- weaker than a covalent bond ...

Chapter 01: Introduction to Dental Materials MULTIPLE CHOICE 1. Until 1970, which of the following groups of dental auxiliaries were allowed to perform intraoral functions in all states? 1. Dental hygienists 2. Registered dental assistants 3. Certified dental assistants 4. On-the-job trained dental assistants a. 1, 2, 3, 4 b. 1, 2, 3 c. 1, 2 d. 1 ANS: D Until 1970, only the dental hygienist was allowed to perform intraoral functions in all states. Although laws vary ...