2T_Types of chemical reactions by Lam Mei Kien https://padlet.com/lai_mei_kien/2T_chemrxn Name the different categories of chemical reactions and give one example each. en-us 2022-04-07 14:21:05 UTC 2022-04-19 04:15:35 UTC hello@padlet.com https://padlet.net/icons/png/1f30c.png chloes and anu https://padlet.com/lai_mei_kien/2T_chemrxn/wish/2147973380 neutralisation (brushing your teeth with alkaline toothpaste to clean the acid of bacteria on the teeth), combustion (burning of fuels — petrol for cars) , thermal decomposition (calcium carbonate being heated) , oxidation (rusting, cellular respiration)]]> 2022-04-19 04:05:18 UTC https://padlet.com/lai_mei_kien/2T_chemrxn/wish/2147973380 tharika, kate lynn, valli, wei-lyn https://padlet.com/lai_mei_kien/2T_chemrxn/wish/2147974987 neutralisation 
- the alkaline toothpaste neutralises the acid bacteria on our teeth 
combustion
- burning of coal 
thermal decomposition
- heating of sugar to form carbon and water vapour
oxidation
- rusting of iron
- apple turning brown ]]> 2022-04-19 04:07:03 UTC https://padlet.com/lai_mei_kien/2T_chemrxn/wish/2147974987 kayla, jovene, neya and alexia https://padlet.com/lai_mei_kien/2T_chemrxn/wish/2147975076 - neutralisation —> when your stomach hurts, you take a pill called antacids to remove excess acid
- combustion —> fireworks
- thermal decomposition —> burning of sugar solution
- electrolysis —> splitting of water
- oxidation —> when leaving fruits out for a long while and it turns brown

]]> 2022-04-19 04:07:09 UTC https://padlet.com/lai_mei_kien/2T_chemrxn/wish/2147975076 Anna, Janelle, Kai Kee, Ashley lew_shi_ting_ashley_2024 https://padlet.com/lai_mei_kien/2T_chemrxn/wish/2147975542 Thermal decomposition
- heating of sugar till it turns carbon (black in colour)

Combustion
- burning of charcoal in a fire pit

Neutralisations
- when an acid and alkali are mixed together

Oxidation
- rusting of iron nails]]> 2022-04-19 04:07:42 UTC https://padlet.com/lai_mei_kien/2T_chemrxn/wish/2147975542 elise, maya, clara and shayna elise_yuki_sim_2024 https://padlet.com/lai_mei_kien/2T_chemrxn/wish/2147975621
neutralisation
using toothpaste to brush teeth

combustion
happens in a car engine -> chemical potential energy is converted to kinetic energy

thermal decomposition
burning of sugar

oxidation
rusting of iron


]]> 2022-04-19 04:07:47 UTC https://padlet.com/lai_mei_kien/2T_chemrxn/wish/2147975621 Julia, Portia, Raeann, Nicole ong_kai_rui_nicole_2024 https://padlet.com/lai_mei_kien/2T_chemrxn/wish/2147976296 1) Neutralisation
Sodium chloride + hydrochloride acid, brushing teeth with toothpaste

2) oxidation
Iron rusting, apple turning brown

3) Thermal decomposition
Heating sugar to form carbon and water vapour

4) Combustion
Burning fossil fuels


]]> 2022-04-19 04:08:33 UTC https://padlet.com/lai_mei_kien/2T_chemrxn/wish/2147976296 natalie, sophia kate, audrey, cara cara_yew_kay_lee_2024 https://padlet.com/lai_mei_kien/2T_chemrxn/wish/2147976550 4 types of chemical reactions
  • neutralisation
    • brushing teeth
  • combustion
    • burning of fuels
  • thermal decomposition
    • burning sugar until it is black 
  • oxidation 
    • iron rusting
  • electrolysis 
    • splitting water into its components
]]> 2022-04-19 04:08:50 UTC https://padlet.com/lai_mei_kien/2T_chemrxn/wish/2147976550 Krupa, Abigail, Yathushana, Weien https://padlet.com/lai_mei_kien/2T_chemrxn/wish/2147977733 Neutralisation- use toothpaste to neutralise the acid in the mouth
Combustion- burning of fossil fuels for energy
Thermal decomposition- heating sugar until it turns black
Oxidation- metal nails rusting

]]> 2022-04-19 04:09:43 UTC https://padlet.com/lai_mei_kien/2T_chemrxn/wish/2147977733