HSC Chemistry Topic 1 PRODUCT ON of MATERIALS What is this topic about? To keep it as simple as possible‚ (K.I.S.S.) this topic involves the study of: 1. POLYMERS FROM PETROCHEMICALS & BIOMASS 2. ALTERNATIVE FUELS - ETHANOL & THE ALKANOLS 3. REDOX CHEMISTRY & BATTERIES 4. RADIOACTIVITY & ITS USES ...all in the context of society’s use of energy and materials but first) an introduction ... In the previous topic in the Preliminary Course‚ you learnt about carbon chemistry of petroleum Then you
Premium Polymer Ethanol Ethanol fuel
IGSCE Chemistry Notes Oxides Oxides are used to determine whether an element is a metal or a non-metal. Most non-metals are classed as acidic oxides. While most metals are classed as basicoxides. Acidic Oxides * Reacts with water to form acids * Neutralises alkaline solution to form salt + water Basic Oxides * Neutralises acidic solutions to form salt + water Amphoeteric Oxides * These are non-metals which display both acidic and basic properties Alkaline Oxides * Reacts
Premium Oxygen Carbon dioxide Hydrogen
maintained during transitory pollution incidents in the source river. 4. Pre-conditioning – Water rich in hardness salts is treated with soda-ash (sodium carbonate) to precipitate calcium carbonate out utilising the common-ion effect. 5. Pre-chlorination – In many plants the incoming water was chlorinated to minimise the growth of fouling organisms on the pipe-work and tanks. Because of the potential adverse quality effects (see chlorine below)‚ this has largely been discontinued.[citation needed]
Premium Water Chlorine Water purification
preferences Consumer distrust Fashionability Expansion of the bottled water and home filter industries . . . Plan of the report Acknowledgements Background Consumer perception of drinking water quality Current topics relative to drinking water quality Chlorination and
Premium Drinking water Water Water supply
P In Partial Fulfillment of Requirements in MLS 200 Community and Public Health "POLIOMYELITIS" Submitted to: Ma’am Chalee S. Reyes Ma’am Julie J. Tiu Submitted by: Jenn Lori Y. Gepaya BMLS-2E POLIOMYELITIS Poliomyelitis (polio) is a highly contagious infectious viral disease‚ which mainly affects young children below five years old. It is an acute and communicable disease. Although approximately 90% of polio infections cause no symptoms
Premium Enterovirus Nervous system
the infected host. Therefore adhering to proper sanitation and hygiene measures is important for preventing this illness. Water treatment and water avoidance Water purification is a paramount public health measure‚ but it must be noted that chlorination has little effect on the Cryptosporidium oocysts;
Premium Water Bacteria Infection
Biocatalysis and Biotransformation Redesigning existing enzymes by protein engineering Metabolic engineering for multistep biotransformation Cyanide Biotransformation Redesigning existing enzymes by protein engineering WHAT IS PROTEIN ENGINEERING??? It is a process of developing useful or valuable proteins which involves * Modification of existing enzymes * Production of new enzymes In other words‚ the design and construction of new proteins or enzymes with novel or desired functions
Premium Enzyme Carboxylic acid Metabolism
industrial applications. In general the methods used include physical processes such as filtration‚sedimentation‚ and distillation‚ biological processes such as slow sand filters or biologically active carbon‚ chemical processes such asflocculation and chlorination and the use of electromagnetic radiation such as ultraviolet light. The purification process of water may reduce the concentration of particulate matter including suspended particles‚ parasites‚ bacteria‚algae‚ viruses‚ fungi; and a range of dissolved
Premium Water Water purification Drinking water
(note: there is CO2 solid‚ its dry ice) – Complete combustion: ▪ hydrocarbon + oxygen [pic] water + carbon dioxide – Displacement reactions: ▪ Y + X (anion)[pic] X + Y (anion); where Y > X on activity series or Eo table. • Alkene/alkane reactions: – Cracking of pentane: ▪ pentane [pic] ethylene + propane ▪ C5H12 (g) [pic] C2H4 (g) + C3H8 (g) – Hydration of ethylene (the reverse can also happen known as de-hydration‚ where concentrated acid is used): ▪ ethylene
Premium Covalent bond Chemical reaction Ionic bond
Please note that‚ except for the first four alkanes (n=1..4)‚ their chemical names can be derived from the number of C atoms by using Greek numerical prefixes denoting the number of carbons and the suffix "-ane". Formula | Name(s) | No. of Isomers | m.p. [°C] | b.p. [°C] | CH4 | methane (natural
Premium Ion Chemistry Molecule