Water chemistry prelim notes

Perform an investigation involving calculations of the density of water as a liquid and a solid using: Water also carries waste products away from cells.

Glucose are usually soluble in water Most covalent molecular substances e. This is when a solid is in contact with its saturated solution there is a dynamic balance between dissolution and precipitation: A mixture off solute dissolved In a solvent In which particles are evenly distributed as single particles.

Odium chloride and covalent molecular substances with hydrogen bonding e. Covalent Network Structure Covalent network lattices such as diamond and silicon dioxide are insoluble in all solvents as the chemical bonds holding the atoms in placer are too strong to be broken Example: This is due to the formation of a strong ion-dipole attraction where the dipoles of the water molecules attract the ions in the solution and surround them.

In exchange for uploading documents you will receive credits. The substance that is dissolved Solvent: Many drinks that humans use are aqueous solutions, as there are many household products such as bleaches, disinfectants, cleaning agents and some medicines. Imposition of water across the different spheres of the earth Water cycle that creates rain, hail and snowfall Eroding, carving out valleys and wearing down mountains It is essential to have different states of water in human life as a natural resource For drinking, cooking and washing For recreation such as swimming and skiing For transport including ships For generating hydro-electricity In industry as a reactant, solvent and cleaning agent 1.

Describe a model that traces the movement of ions when solution and precipitation occur When two solutions have not been mixed, they exist as free moving ions The electrostatic attraction between the water molecules and the ions is greater than the electrostatic attraction between the ions itself When the two solutions have been mixed, a precipitate may form A precipitation reaction only occurs when the force of attraction between the two ions is stronger than the electrostatic attraction between the water molecules and the ions 4.

Water dissolves nutrients from soil and carries them in solution to living cells. The higher the dipole moment strength the higher the M.

Preliminary Chemistry

A constituent of cells and its role as both a solvent and a raw material in metabolism; A habitat in which temperature extremes are less than nearby terrestrial habitats; An agent of weathering of rocks both as liquid and solid; A natural resource for humans and other organisms Water In Its different states play a vital role In cells that makes up the fundamental processes for an organism to live Raw materials for chemical reactions that constitute Solvents In which life processes occur Transport mediums to carry nutrients to cells and remove waste products Water is known as a good thermal regulator which helps a diverse range of living organisms.

Water has a high surface tension due to strong intermolecular forces I.

Describe Water chemistry prelim notes bonding between molecules Hydrogen bonding between molecules Hydrogen bonds are a stronger form of the dipole-dipole force and only occur between partially positive hydrogen in one molecule and the lone pair of electrons of; — Fluorine — Nitrogen — Oxygen Bonded to the hydrogen atoms in a neighboring molecule Hydrogen bonds are the strongest type of intermolecular forces Less hydrogen bond rower melting and boiling point Strong hydrogen bonding accounts for higher boiling point of the compounds Electronegative of Atoms 2.

To increase surface area, molecules must move to the surface by breaking some interior attraction. These can then be used to checkout other documents on Thinkswap. Industry uses aqueous solutions of acids and alkalies and often makes or extracts products from aqueous solutions These different charges are attracted; hence, they are pulled together.

When this has happened, dynamic equilibrium has been achieved. Identify the dynamic nature of ion movement in a saturated dissolution When an ionic substance solves in water, it breaks up into ions which move independently through the solution.

Water that flow readily over each other, giving low viscosity Water is an important solvent 3. The substance that dissolves the solute Solution: Many methods to help prevent thermal pollution that has an impact on the environment Generating electricity requires a lot of hot water, so using less electricity can decrease thermal pollution Reduce the temperature of the heated water a few degrees and it will greatly help reduce the level of thermal pollution Related posts: Hydrocarbons such as hexane and octane are also insoluble and immiscible in water.

They are typically greater than 20 pages in length and go into more detail when covering topics. H might attract another highly electronegative atom.Module 3 Water - Chemistry Preliminary Syllabus Notes User Description: This is the Third Topic or Module 3 called Water Syllabus Notes for the Preliminary HSC Chemistry Course.

Concise and amazing Chemistry Prelim Exam Notes!:D: PDF (N/A) COMPLETE Preliminary Course Notes. PDF Prelim Energy module notes: DOC (N/A) Prelim water module notes: DOC (N/A) Notes on Production of Materials module - including pracs Compilation of my notes + other good bored of studies notes.

DOCX (N/A) Replace. Upon exposure to water, the hydrogen chloride molecule becomes ionised as the covalent bond breaks. This ionisation reaction produced a hydronium ion as the hydrogen ions move to the water molecules and a.

8. 4 Water Water Is distributed on Earth as a solid, liquid and gas 1. 1 Define the terms solute, solvent and solution Solute: The substance that is dissolved Solvent: The substance that dissolves the solute Solution: A mixture off solute dissolved In a solvent In which particles are evenly distributed as single particles.

A Continue reading "Water Chemistry: Prelim Notes". Water, ethanol and glycerin all exhibit hydrogen bonding, but in water this is the greatest. Mercury also has a high surface tension as demonstrated by its ability to not wet the surface of glass.

When water drips from a tap, the detached water droplets are almost spherical. Chemistry Notes: Metals: • A metal consists of a lattice of positive ions surrounded by a ‘sea’ of mobile delocalised valence electrons.

Water Chemistry: Prelim Notes

• Metallic bonding is the electrostatic attraction between the delocalised electrons and the positive ions in the metallic lattice.

Water chemistry prelim notes
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