Halogens Study guides, Class notes & Summaries

What are the group 1 metals known as? - correct answer The Alkali Metals Reactivity within the groups: - correct answer Alkali metals: reactivity increases as you go down, melting point/boiling point decreases as you go down Halogens: reactivity decreases as you go down and melting point/boiling point increases as you go down What properties do the group 1 metals have? - correct answer They all ha...

What is a blend of two or more components who's equilibrium vapor phase & liquid phase compositions are the same at a given pressure? - Azeotrope This is a halogenated hydrocarbon containing one or more of the three halogens: fluorine, chlorine, and bromine - Halocarbon Chlorofluorocarbons (CFCs) consist of? - Chlorine, fluorine, carbon CFCs are chemically very stable because they contain no? - Hydrogen CFCs are damaging to what layer of the ozone layer? - Stratospheric Of the three comm...

The atom - Consists of a small nucleus with a positive charge containing most of the weight. Has an electron cloud with mostly empty space but some electrons as well Protons - The chemical identity of the element Electrons - Ionic character of atom Neutrons - Isotopic character of the atom Atomic number (Above element on PT) represents... - Number of protons Mass number represents... - Sum of protons and neutrons Atomic mass (Under element on PT) represents... - An average of the atomic m...

the study of compounds that contain the element carbon. - Answer organic chemistry natural organic compounds - Answer cotton, wool, or silk synthetic organic compounds - Answer nylon and polyester what do all organic compounds contain? - Answer carbon and hydrogen atoms carbon always forms how many covalent bonds? - Answer 4 what type of bonds can carbon form? - Answer single, double, or triple a carbon atom surrounded by four atoms four single bonds - Answer etha...

Which of the following is true? A. Metabolism only involves breaking down larger molecules. - Answer Amphibolic rxns can proceed toward anabolism or catabolism. Which of the following is associated with the greatest risks to human health? - Answer Ethylene oxide. The presence of mycolic acid in the cell wall characterizes? - Answer Myobacteria. Which of the following is a fungis? - Answer Saccharomyces. Which microbe is correctly paired with its BSL level? - Answer MR...

AAMI Intro to Chemistry Midterm Review 2024 Questions and Answers 100% Pass The 5 chemical properties of matter - Correct Answer ️️ -reactivity, combustibility, valence, combining requirements, stability The atomic mass is equal to the sum of the... - Correct Answer ️️ -protons and neutrons Hydrogen has no... - Correct Answer ️️ -neutrons The outer orbit (last shell) requires how many valence electrons? - Correct Answer ️️ - 8 The 1st shell must have how many electrons t...

HESI A2 CHEMISTRY 2023- 2024 ALL 25 QUESTIONS WITH ANSWERS AND RATIONALES LATEST UPDATES 100% VERIFIED ANSWERS WITH EXPLANATION. 1. Which of the following substances allows for the fastest diffusion? A. gas B. solid C. liquid D. plasma Explanation: Diffusion is fastest through gases. The next fastest medium for diffusion is liquid, followed by plasma, and then solids. In chemistry, diffusion is defined as the movement of matter by the random motions of molecules. In a gas or...

Pearson Edexcel Level 1/LeveI 2 GCSE (9-1) Time 1 hour 10 minutes Paper ISCO/2CF Reference combined science PAPER 5 Foundation Tier Please check the examination details below before entering your candidate information Centre Number Candidate Number Pearson Edexcel Level 1/Level 2 GCSE (9–1) Time 1 hour 10 minutes Paper reference 1SC0/2CF Total Marks Candidate surname Other names You must have: Calculator, ruler • • Answer all questions. • Calculators may be used. •...

3 stages of cellular respiration - glycolysis, krebs cycle, electron transport chain 5 Mechanisms of antibacterial drugs - Ihibition of: cell wall, protein, nucleic acid synthesis and metabolic pathway Interference: cell membrane integrity 7 methods of physical control - heat, pasteurization, cold, pressure, filtration, desiccation, and radiation 7 types of disinfectant - phenols, halogens, alcohols, heavy metals, oxidizing agents, aldehydes, acids and alkalis Acids and Alkalis - used to...

Disinfection - destruction of vegetative pathogens; usually on inanimate objects. Antiseptic - agent which prevents bact. contamination and growth; usually on living tissue. Which agent doesn't necessarily work better at higher concentrations? - Alcohol, 70% (goldie lock zone)(60-80% most effective) (Ethyl and Isopropyl) -Alcohol is very effective to resistant to inactivation by organic materials (halogens are not good at this) Name the factors that affect a disinfectant activity. ...