2 electron domains - Study guides, Class notes & Summaries

Cells - Basic unit of life Tissues - Cambos of cells with common function Several tissues together - Organ Organs working cooperatively - Organ system The whole shebang, all the organ system working together - Organism Cells have 4 common components - Plasma Membrane (fluid mosaic, Barrier, intergral proteins are embedded), Cytoplasm, DNA (genetic material of cells), Ribosomes (RNA + protein used for protein synthesis) What is not a common component for Cells - Cell wall Two types of ce...

linear - 2 electron domains 2 bonding domains 0 lone pairs 180 degree angles trigonal planar - 3 electron domains 3 bonding domains 0 lone pairs 120 degree angle trigonal planar: bent - 3 electron domains 2 bonding domains 1 lone pair less than 120 degree angles tetrahedral - 4 electron domains 4 bonding domains 0 lone pairs 109.5 degree angles tetrahedral: trigonal pyramidal - 4 electron domains 3 bonding domans 1 lone pair less than 109.5 degree angles tetrahedral: bent - 4...

1. The "triboelectric effect" causes what kind of electricity? ANS Static 2. The law of static electrical charges states ANS like charges repel 3. Minute particles that make up all possible elements and still retain the unique chemical characteristics of the element are called . ANS - Atoms 4. A molecule is the smallest particle of matter that can exist by itself. (1) ANS True (1) 5. A basic atom must contain what two types of subatomic particles? ANS Electron and proton 6. An electr...

CHEM 120 Final Exam 5 GRADED A+ (ACTUAL EXAM ) Questions and Answers (Solved) 1. How many bonds can nitrogen have? Which rule or principle should beused? A) Five bonds; octet rule. B) Three bonds; octet rule. C) Three bonds; the Hund's rule. D) Five bonds; the Aufbau Principle. Answer: B 2. When two hydrogen atoms meet, they will attract to each other and form abond (and a H2 molecule).Why? A) Because electrons like to stay together. B) Because electrons like to be paired up. C) Bec...

Question 1 Correct 1.00 points out of 1.00 Flag question Question text In an ecosystem, energy Select one: a. comes ultimately from bacteria b. cycles along with chemical nutrients c. typically flows from producers through a series of consumers d. typically flows from consumers to producers to decomposers Question 2 Correct 1.00 points out of 1.00 Flag question Question text Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that hierarchy from least in...

What are proteins? - Polymers of amino acids covalently bonded through peptide bonds into a chain What are the parts of an amino acid? - central carbon single hydrogen carboxyl group amino group R-group {side chain} What is the significance of the R-group {side chain}? - distinguishes one amino acid from another and dictates an amino acid's properties What is an oligopeptide? - less than 50 amino acids What is a polypeptide? - more than 50 amino acids How are peptide bonds...

Electronics ETA Certification Practice Exam 2024 Questions And Answers. The "triboelectric effect" causes what kind of electricity? Answer- Static The law of static electrical charges states: Answer- like charges repel Minute particles that make up all possible elements and still retain the unique chemical characteristics of the element are called _____________. Answer- Atoms A molecule is the smallest particle of matter that can exist by itself. (1) Answer- True (1) A basic atom must c...

What is homeostasis - the process whereby living organisms regulate their cells and bodies to maintain relatively stable internal conditions What are the characteristics of living things - 1. Cells and Organization 2. Energy use and metabolism 3. Response to environmental changes 4. Regulation and homeostasis 5. Growth and Development 6. Reproduction 7. Biological Evolution atom - the smallest component of an element having the chemical properties of the element molecule - Two or ...

MCB 104 Unit 3: Cell Biology Questions And Answers Well Illustrated. What are the 3 domains? - correct answer. Bacteria, Archaea, Eukarya What units do we measure cells in for radius and volume? - correct answer. micrometers, femtoliters Minimum resolvable distance in: EM, light microscopy, human eye - correct answer. 2 nm, 200 nm, 0.2 mm resolution - correct answer. r = distance by which two closely spaced objects can be distinguished r and wavelength ...

Should an understanding of science and how scientific inquiry or thinking works be part of our definitions of what constitutes an educated person and a good citizen? Yes, it is important for everyone What is the purpose of the scientific method? to minimize bias and error in experiments What are these? image a: microbes in sea water seen by microscope image Image b: stars in a Huddle telescope What invention was critical to the field of microbiology? the microscope How much smaller is a bact...