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Tuesday, April 12

  1. page What is the periodic table and how is it organized? (Armstrong) (deleted) edited
    5:01 am

Wednesday, February 23

  1. page How pressure, type of solvent, and temperature affect the solubility of a substance. (Jones) edited To understand how pressure, type of solvent, and temperature affect the solubility of a substance,…
    To understand how pressure, type of solvent, and temperature affect the solubility of a substance, you have to know what solubility is. Solubility is the measure of how much solute can be dissolved in a solvent. Now for pressure. Pressure affects only gas, not liquid and solid. When you add pressure to a gas, the gas molecules are forced in to the solution. This means the solubility rises when pressure is added. What about type of solvent you ask? Well when you have different solvents the reaction of each one is different. Even if you have the same solute, the solubility will be different between each one. Let me show you some examples of different solvents that make the solubility measure change. The solubility of sugar poured in to water is high, but the solubility of Barium sulfate poured in to water is low. Now comes temperature. When temperature increase is added to liquid water, the solubility of the substance is increases. The warm temperature makes the solute dissolve much faster than a cold temperature. When the temperature decreases the solubility goes down. Finally stirring a solution. When you stir a solute in a solvent the solubility can either be high or low. It depends on the temperature, if it is hot or warmer, stirring progresses the solubility. If the temperature is cold or cool, stirring will make no impact on the solubility. Now you know that you’ll make a hundred on question about solubility!
    {Screen_shot_2011-02-15_at_9.44.21_PM.png} {Screen_shot_2011-02-15_at_9.34.46_PM.png}
    Solubility. Dir. Brian Jerome. 1998. United Streaming. Web. 16 Feb. 2011. <http://player.discoveryeducation.com/index.cfm?guidAssetId=76FBB860-6DC5-472D-ABF7-9FFF73B5EE3D&blnFromSearch=1&productcode=US#>.
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    8:29 am

Monday, February 21

  1. page Toxic Chemicals (Carr) edited ... Do not ingest or swallow may cause burning to throat or eyes automatic dish washing detergents…
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    Do not ingest or swallow may cause burning to throat or eyes automatic dish washing detergents have been known to cause skin irritation and burns while manual washing liquids are mild but may still cause irritation to the throat and eyes if ingested. of the skin or eyes.
    buy Green Works products, usually safer to humans and the environment, keep out of reach of small children. Keep away from eyes and mouth.
    ToxicThe EPA protects the environment from toxic chemicals and chemical waste. Toxic chemicals should
    Sources: http://www.epa.gov/kidshometour/tour.htm#view
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    9:51 am
  2. page Toxic Chemicals (Carr) edited ... Dish washing detergent mainly phosphate also found in soaps washing dishes and removing t…
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    Dish washing detergent
    mainly phosphate
    also found in soaps
    washing dishes and removing tough stains
    Do not ingest or swallow may cause burning to throat or eyes automatic dish washing detergents have been known to cause skin irritation and burns while manual washing liquids are mild but may still cause irritation to the throat and eyes if ingested. of the skin or eyes.
    (view changes)
    9:44 am
  3. page Toxic Chemicals (Carr) edited ... Do not ingest or swallow may cause burning to throat or eyes automatic dish washing detergents…
    ...
    Do not ingest or swallow may cause burning to throat or eyes automatic dish washing detergents have been known to cause skin irritation and burns while manual washing liquids are mild but may still cause irritation to the throat and eyes if ingested. of the skin or eyes.
    buy Green Works products, usually safer to humans and the environment, keep out of reach of small children. Keep away from eyes and mouth.
    ...
    be contacted immediately.immediately at 1800-222-1222.
    Sources: http://www.epa.gov/kidshometour/tour.htm#view

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    7:45 am
  4. page Toxic Chemicals (Carr) edited ... Serious breathing problems, irritating to eyes throat and skin, Always wash your hands before…
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    Serious breathing problems, irritating to eyes throat and skin,
    Always wash your hands before and after handling such chemicals, never mix toilet bowl cleaners, if they are mixed harmful gasses are likely to occur. always have exhaust fans in the room and remember to wear gloves. if any chemical is ingested call the poison control center immediately.
    {file:///Users/sarahecarr/Library/Caches/TemporaryItems/moz-screenshot-1.png} {file:///Users/sarahecarr/Library/Caches/TemporaryItems/moz-screenshot-2.png} Drain Cleaners
    Lye and sulfuric acids
    unclogging drains, breaking down mold limestone, and grime buildup
    Dangerous fumes, may cause blindness if they come in contact with your eyes burns on skin and may also lead to death if ingested.
    call the poison control center immediately and always read labels so that you may know how to properly use this product and react in case of an emergency.
    Air fresheners
    formaldehyde petrolium distillates, dischlorobenzene, and aerosolpropellants
    deodorize the air and freshen the air used in rug cleaners
    highly flammable, irritant to eyes, skin and throat they usually cause death if eaten or ingested by animals or humans
    Always read labels,do not use near open flames if in eyes or mouth, rinse with cold water throughly.
    Antifreeze
    Motor oil
    ethylene glycol
    Propylene glycol
    (yellow greenish liquid)
    made up of many unique chemicals may be contaminated with zinc, magnesium, or copper that it has acquired from the engine.
    ethylene glycol
    Propylene glycol
    (yellow greenish liquid)
    made up of many unique chemicals may be contaminated with zinc, magnesium, or copper that it has acquired from the engine.
    Dangerous fumes may be deadly if inhaled and can do damage to your kidneys and liver if ingested.
    used in vehicles & tractors, makes sure that the pistons do not rub against each other.
    is expected to contain chemicals that may lead to cancer (carcinogens) serious threat to plants and animals
    Read labels, use less toxic antifreeze, keep stored in a high place away from children and pets, remember to wear gloves when handeling antifreeze, because it can be passed on through skin absorption.
    Dispose of oil properly, do not pour out on ground or in any water source
    Safest place is the recycling center.
    oven cleaners
    Sodium hydroxide and usually potassium hydroxide (lye)
    cleaning ovens
    Sodium Hydroxide:
    some shoe polishes
    Can be harmful to skin and eyes do not ingest or swallow may cause burning of the skin or eyes.extremely corrosive meaning that it may burn your eyes and skin most oven cleaners are fatal if swallowed.
    Non toxic cleaners without lye are usually available.
    always read labels. oven cleaners should only be used by adults and adults should always wear aprons and gloves when handling oven cleaners. KEEP AWAY FROM CHILDREN!
    Dish washing detergent
    mainly phosphate
    washing dishes and removing tough stains
    Do not ingest or swallow may cause burning to throat or eyes automatic dish washing detergents have been known to cause skin irritation and burns while manual washing liquids are mild but may still cause irritation to the throat and eyes if ingested. of the skin or eyes.
    buy Green Works products, usually safer to humans and the environment, keep out of reach of small children. Keep away from eyes and mouth.
    Toxic chemicals should be handled with extreme caution around pets, plants and humans. Some toxic chemicals may have fatal outcomes if ingested . If any chemical is ingested the poison control center should be contacted immediately.

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    7:42 am

Thursday, February 17

  1. page What are some human health conditions that are caused from toxic chemicals? Give an illustration.(Bubak) edited ... {Hg.jpg} {As.jpg} http://www.ptable.com/
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    8:32 am
  2. page What are some human health conditions that are caused from toxic chemicals? Give an illustration.(Bubak) edited ... {Screen_shot_2011-02-17_at_11.10.13_AM.png} {Hg.jpg} {As.jpg}
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    8:31 am

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