Chemistry

Year 10 IGCSE Key Terms

acid any substance that produces hydrogen ions, H+, when dissolved in water acid rain rain with a pH less than 5.6; acid rain has been made more acidic than normal rain because sulfur oxides and nitrogen oxides have dissolved in it; acid rain causes damage to buildings made from limestone, damages metal structures, kills fish, damages […]

Y10 Module 8 Key Words

Alcohol A family of chemicals made by fermenting sugars Alloy A metal mixture, often with special properties Binge Drinking Drinking excessive amounts of alcohol over a short space of time with the intention of getting completely drunk Breathability Clothing that lets the water vapour from sweat escape has this Carbon Fibre Fibres made from carbon […]

Y10 Module 7 Key Words

Acid Rain rain with dissolved pollutants such as sulphur dioxide that makes the rain acidic Atmosphere the layer of gas that surrounds the Earth Bias(on the internet) where an unbalanced account of a problem is given to push forward one point of view over another Bio-fuels a fuel mad up from living things-usually from plants […]

Y10 Module 6 Key Words

carbohydrates substances that are compounds of carbon, hydrogen and oxygen. caustic soda the common name for sodium hydroxide citric acid a weak acid found naturally in oranges and lemons. combustion burning crust the rocky outer layer of the earth decomposition a reaction in which a substance breaks down into two or more new substances dehydrated […]

Y10 Module 5 Key Words

alkali metal an element found in group 1 of the periodic table. alkali metals include lithium, sodium and potassium alkaline a substance that turns universal indicator paper blue and has a pH greater than 7 alloy a mixture of metals or non-metals analyse to study a substance carefully to find out which chemicals it contains […]

Xtremepapers.net

Covalent bonds are formed by the (1) of electrons. Covalent substancees have (2) electrical conductivity. 1-sharing2_low What substance is not used as a fuel? Oxygen Which changes of condition slow down the reaction between magnesium and air? Using magnesium ribbon instead of powdered magnesium. Dilute sulguric acid is added to a mixture of copper, magnesium […]

WWU Chem 351 Chpt 3

Methylene Group       Homologs -CH2-         Members that difere in number of methylene groups Butane   What is the name for linear butane?  For branched butane? C4H10   “n-butane” (n-denotes carbon on mother chain it’s attached to) ; “iso-butane” b/c it’s a branched isomer What is the IUPAC Rule regarding […]

WWU Chem 351 Chpt 1-2

Carbon typically makes how many bonds?  In regards to electrons, what else can we call Carbon? 4 bonds   Tetravalent Nitrogen typically makes how many bonds?  In regards to electrons, what else can we call nitrogen? 3 bonds   “Trivalent” Dipole Moment Charge separation x bond length Formal Charge group # – # nonbonding electrons […]

Writing Equations

mono 1 di 2 tri 3 tetra 4 penta 5 hexa 6 hepta 7 octa 8 octa 8 nona 9 deca 10 Di-atomic molecules H2 N2 O2 F2 Cl2 Br2 I2 sulfate SO4 Phosphate PO4 nitrate NO3 hydroxide OH limiting reactant reactant that runs out first & limits how much product you can make reactant […]

Writing Chemical formulas

Hydrogen Chloride HO Titanium Nitride TiN Tin Sulfide SnS2 Barium Iodide BaI2 Manganese Phosphide Mn3P2 Scandium Carbide ScC3 Lithium Oxide Li2O Platinum Fluoride PtF4 Lead Sulfide PbS Aluminum Iodide AlI3 Thallium Bromide TlBr Germanium Oxide GeO2 Polonium Fluoride PoF2 Gold Nitride AuN Cadium Phosphide Cd3P2 Mercury Fluoride HgF Rubidium Bromide RbBr Beryllium Phosphide Be3P2 Calcium […]

naming acids and bases

HF Hydrofluoric Acid HCl Hydrochloric Acid HBr Hydrobromic Acid HI Hydriodic Acid HClO4 Perchloric Acid HClO3 Chloric Acid HClO2 Chlorous Acid HClO Hypochlorous Acid NaOH Sodium Hydroxide Mg(OH)2 Magnesium Hydroxide Ca(OH)2 Calcium Hydroxide NH4OH Ammonium Hydroxide H2CO3 Carbonic Acid H2SO3 Sulfurous Acid H2SO4 Sulfuric Acid HNO3 Nitric Acid CH3COOH Acetic Acid HCN Hydrocyanic Acid KOH […]

WPUNJ AP1 Chapter 2 – Leonard

All living things are composed of ______. matter Define: Matter anything that occupies space and has mass Matter exits in what 3 states? solid, liquid, gas Define: Weight force of gravity acting on mass Define: Energy capacity to do work What does the Law of Conservation of Energy state? Energy cannot be created nor destroyed; […]

wound repair

what are the 3 participants in tissue creation? who are the main participants? cells, matrix, and cytokines. cells are the main participants what are the characteristics of cells in the process of wound repair? cells are the workers, sythesizing extracellular matrix and affecting its creation, they are regulated by cytokines, they also synthesize and release […]

World of Chemistry: Food

What 2 countries are the most profitable for McDonald’s? 1. The US 2. France  Who has 1/2 of the worlds non-nutritive sweetner consumption? The USA. Also, not all non-nutritive sweetners are calorie free. What was the first artificial sweetner, and how/who was it discovered by? Saccharin. Discovered from Ira Ramsen’s task to work on the […]

Working with Solutions

What gives water its "flavor"? Minerals, fluoride, chloride and metallic ions give water its "flavor". What is Suspension? Suspension is a mixture where the particles can be visible and seperated by settling and filtration. An example, would be a snow globe. What is Solution? Solution is a well-mixed solution. Salt and water mixed, the salt […]

WOC: Food Midterm 2

3 Guidelines to Avoiding Heart Disease Moderation is key: 1. Eat less 2. Eat plants 3. Exercise Causes of Overweight / Obesity Overconsumption and living a sedentary lifestyle Diet Now an important health concern in North America; food used to be analyzed based solely on taste, but now eating has become a “clinical experience” involving […]

WoB – Chemistry

5 Pillars HospitalityComm. LeadershipTavern FareCraft Beer/SpiritsEntertainment What creates “real hospitality” ? Enthusiasm/Emphasis on product knowledge Guests expect WoB to be their #1 place to _ What starch is most common for fermentation and what are others? Malted barley. Others: wheat, corn, rice (grains) A craft brewery is . . small, independent and traditional 2 Effects […]

WHMIS and HHPS Symbols

[image] Poisonous and infectious material causing immediate and serious toxic effects [image] oxidizing material [image] poisonous and infectious material causing other toxic effects [image] Dangerously reactive material [image] flammable and combustible material [image] corrosive material [image] compressed gas [image] biohazzardous infectious material [image]   Corrosive [image]   Explosive [image]   Flammable [image]   Poison

which type of problem

o.1M HA ka o.1M B- kb O.1M HCN with 0.1M NaCN HH HCN with KOH titration NH3 with NH4CL HH

What acids and alkalis are like

Lots of thigs around us contain __. acids Some acids are in ___. food We use acids to make things work and ___. to make useful items. Some acids are harmless, but some are ___. dangerous. We find ___ in many natural substances. acids and alkalis. The ___ makes many acids and alkalis every year. […]

Wetpaint Questions

Mixture [image] A Substance made by mixing other Substances Together. Acid [image] A chemical substance that could be harmful if used and can cause chemical reactions and physical reactions. Bases A solution that has an excess of OH- ions. Another word for base is alkali. Salts [image] In chemistry salts are ionic compounds that can […]

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