The Digestive System and Acids and Bases by https://padlet.com/laurakelly1/onk8pa2i4b81 Topic Test Revision en-us 2018-10-01 19:35:07 UTC 2024-05-25 13:14:44 UTC hello@padlet.com laurakelly1 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287843280 1. 
 Identify and locate the major parts of the digestive system including the mouth, oesophagus, stomach, liver, pancreas, small intestine and large intestine, and know their functions. 
 

 
]]> 2018-10-01 19:42:51 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287843280 laurakelly1 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287843406 2. Identify molars, premolars, canines and incisors, and describe their functions 
 

]]> 2018-10-01 19:43:09 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287843406 laurakelly1 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287843460 3.Investigate the action of amylase on starch; name the substrate, product and enzyme ]]> 2018-10-01 19:43:17 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287843460 laurakelly1 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287844353  
4. Use litmus or a universal indicator to test a variety of solutions, and classify these as acidic, basic or neutral 
 
]]> 2018-10-01 19:45:11 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287844353 laurakelly1 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287844500 5.  
Investigate the pH of a variety of materials using the pH scale 
]]> 2018-10-01 19:45:32 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287844500 laurakelly1 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287844601 6.  Give examples of everyday acids and bases. ]]> 2018-10-01 19:45:46 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287844601 laurakelly1 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287844819 7. 
State the names and formulae of common strong acids and bases: H2SO4, HCl, NaOH, Ca(OH)2, and understand that alkalis are soluble bases 
 
]]> 2018-10-01 19:46:14 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287844819 laurakelly1 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287845557 8. 
Show the neutralisation of an acid with a base using an indicator 
 
]]> 2018-10-01 19:47:40 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287845557 laurakelly1 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287845799 9.  
Understand that, when an acid reacts with a base, a salt and water are formed 
i.       HCl + NaOH → NaCl + H2O
ii.     2HCl + CaCO3 → CaCl2 + CO2+ H2O 
 
]]> 2018-10-01 19:48:07 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287845799 laurakelly1 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287845930 10. 
Titrate HCl against NaOH, and prepare a sample of NaCl. 
 
]]> 2018-10-01 19:48:22 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287845930 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287996541 2. Incisors cut and slice food, Premolar and molars chew and crush food, Canines grip and tear food.]]> 2018-10-02 08:49:52 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287996541 j_gyamfi17 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287997219 2.]]> 2018-10-02 08:51:51 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287997219 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287997424 10. NaOH = Na+1 + CL-1]]> 2018-10-02 08:52:25 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287997424 c_hadaran17 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287997617 3. an enzyme is a protein that speeds up a reaction]]> 2018-10-02 08:52:54 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287997617 l_karpuz17 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287997786 5. The PH of different substances ]]> 2018-10-02 08:53:25 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287997786 j_evans17 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287997845 https://www.excellup.com/classten/scienceten/sciencetenimage/10_science_digestive_system.png]]> 2018-10-02 08:53:36 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287997845 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287998264
10.]]> 2018-10-02 08:54:50 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287998264 5. Battery acid has a pH of 1-2Vinegar has a pH of 3-4Lemon has a pH of 4-6Water has a pH of 7Toothpaste has a pH of 8-9Washing powder has a pH of 9-10. a_dibu17 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999333 2018-10-02 08:57:32 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999333 8. https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999536 2018-10-02 08:58:09 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999536 Question 4 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999546 An indicator is a chemical that shows by means of colour change whether a substance is an acid or a base.
If Litmus paper turns blue it is a base and if litmus paper turns red it is an acid. https://d2gg9evh47fn9z.cloudfront.net/800px_COLOURBOX26486234.jpg    https://i.ytimg.com/vi/j3HhPxRSiA0/hqdefault.jpg


]]> 2018-10-02 08:58:10 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999546 r_solomon17 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999713 6: Acids: Vinegar, Lemon, Lime, Wine, Aspirin,]]> 2018-10-02 08:58:48 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999713 r_solomon17 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999727 6: Acids: Vinegar, Lemon, Lime, Wine, Aspirin,]]> 2018-10-02 08:58:51 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999727 r_solomon17 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999757 6: Acids: Vinegar, Lemon, Lime, Wine, Aspirin,]]> 2018-10-02 08:58:56 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999757 6 computherapy12 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999868
  • Sodium hydroxide (NaOH) or caustic soda
  • Calcium hydroxide ( Ca(OH)2 ) or limewater
  • Ammonium hydroxide (NH4OH) or ammonia water
  • Magnesium hydroxide ( Mg(OH)2 ) or milk of magnesia

    • ]]>     2018-10-02 08:59:16 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999868     oesophagus carries food from stomach to the mouth. o_darcy17 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999874 stomach: muscular bag holds food for a few hours. produces enzymes that chemically digest food churns to physically breakdown food 

    small intestine two functions digestion and absorption. makes enzymes that breakdown food 

    liver: makes liquid called bile helps digest fat.

    Pancreas: makes enzymes.]]>     2018-10-02 08:59:17 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999874     r_solomon17 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999974 6: Acids: Vinegar, Lemon, Lime, Wine, Aspirin,]]> 2018-10-02 08:59:37 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999974 r_solomon17 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999990 6: Acids: Vinegar, Lemon, Lime, Wine, Aspirin,]]> 2018-10-02 08:59:40 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/287999990 r_solomon17 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288000003 6: Acids: Vinegar, Lemon, Lime, Wine, Aspirin,]]> 2018-10-02 08:59:43 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288000003 HCL in H2O it dissocates in to separate ions HCL=H+1 +Cl-1 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288000213 2018-10-02 09:00:29 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288000213 Blessing_221 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288000239 2018-10-02 09:00:38 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288000239 Acid and base titration https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288000324 2018-10-02 09:00:51 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288000324 Blessing_221 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288000691 2018-10-02 09:02:02 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288000691 9josh+ Michelle https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288000975 I) hydrochlohloric acid+ sodium hydroxide ~ salt + water

    http://slideplayer.com/slide/6410271/22/images/15/Chemical+properties+Base+++Acid+Salt+++Water+Calcium+hydroxide.jpg]]>     2018-10-02 09:02:49 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288000975     Acid and base mixed together form a salt and water in titration experiment https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288001035 2018-10-02 09:03:02 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288001035 Acid and base titration https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288001304 Is an experiment when acid and a base are mixed they make a pink colour.]]> 2018-10-02 09:03:51 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288001304 7. Nicole_Kenny_9 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288001772
    Formulas of Common Bases

    Sodium Hydroxide     - NaOH
    Potassium Hydroxide - KOH
    Ammonium Hydroxide - NH4OH
    Calcium Hydroxide - Ca(OH)2
    Magnesium Hydroxide - Mg(OH)2
    Barium Hydroxide - Ba(OH)2
    Aluminum Hydroxide - Al(OH)3
    Ferrous Hydroxide or Iron (II) Hydroxide - Fe(OH)2
    Ferric Hydroxide or Iron (III) Hydroxide - Fe(OH)3
    Zinc Hydroxide - Zn(OH)2
    Lithium Hydroxide - LiOH

    ]]>     2018-10-02 09:05:10 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288001772     Blessing_221 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288001848 slideplayer.com/slide/10668001/36/images/4/Salivary+Amylase+Salivary+amylase+works+on+insoluble+starch+and+breaks+it+down+into+maltose+which+is+sol]]> 2018-10-02 09:05:24 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288001848 7. Strong acid s_omidiran17 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288001995
  • HCl - hydrochloric acid
  • HNO3 - nitric acid
  • H2SO4 - sulfuric acid (HSO4- is a weak acid)



    • ]]>     2018-10-02 09:05:56 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288001995     j_gyamfi17 https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288301533 2018-10-02 18:06:58 UTC https://padlet.com/laurakelly1/onk8pa2i4b81/wish/288301533