https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26 Post your picture or video of your experiment to show the reactions and provide an explanation of each reaction. en-us 2021-08-13 04:30:30 UTC 2021-08-15 14:11:37 UTC hello@padlet.com tanyixuan0105 https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1677761787 After using pouring water in a container, with staple bullets inside, i left it overnight.
- there was rust formed on the metal.]]> 2021-08-13 04:30:30 UTC https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1677761787 tanyixuan0105 https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1677761788 Acids: vinegar, lemon juice, citric acid
Carbonates: detergent, tablets for water softening, toilet cleaners
Metals: bowls, utensils, water bottle

]]> 2021-08-13 04:30:30 UTC https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1677761788 tanyixuan0105 https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1677761789 1) Acid is any hydrogen-containing substance that is capable of donating a proton (hydrogen ion) to another substance.

2) Base is a molecule or ion able to accept a hydrogen ion from an acid.

3) A compound with particular chemical properties including neutralizing or effervescent with acids, typically a corrosive substance of this kind such as lime or soda.

4) Salt is a substance is a substance produced by the reaction of an acid with a base, salt consists of a positive ion of a base and negative ion of an acid. This term can also be use to refer to sodium chloride (table salt)]]> 2021-08-13 04:30:30 UTC https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1677761789 tanyixuan0105 https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1679000087 The $0.20 cent coin I placed in water overnight did not rust. I think that it was because of the coatings done on the coin to prevent rusting.]]> 2021-08-14 13:03:30 UTC https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1679000087 tanyixuan0105 https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1679004358 Acid - An acid is a molecule or ion capable of either donating a proton, known as a Brønsted-Lowry acid, or, capable of forming a covalent bond with an electron pair, known as a Lewis acid.

Base - A base is a substance that can neutralise the acid by reacting with hydrogen ions. Most bases are minerals that react with acids to form water and salts. Bases include the oxides, hydroxides and carbonates of metals. Bases have a slippery feel and taste bitter.

Alkali - Alkali are strong bases that turn litmus paper from red to blue; they react with acids to yield neutral salts; they are caustic and in concentrated form are corrosive to organic tissues.

Salt - Salts are neutral chemical compounds made of cations (positive ions) attached to anions (negative ions). ]]> 2021-08-14 13:14:22 UTC https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1679004358 tanyixuan0105 https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1679006493 Acids: Yogurt, Vinegar, Lemon juice
Carbonates: Toothpaste, Moisturiser, Exfoliants
Metals: Chairs, Baking trays, Glasses]]> 2021-08-14 13:19:53 UTC https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1679006493 tanyixuan0105 https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1679011119 Bubbles formed after pouring baking soda into the container with vinegar. The mixture foamed up in a few seconds with carbon dioxide gas. The reaction of sodium bicarbonate to acetic acid to carbon dioxide, water and sodium acetate caused the foaming.]]> 2021-08-14 13:28:58 UTC https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1679011119 tanyixuan0105 https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1679014028 After 2 days, the paperclip rusted and the vinegar turned brownish-orange. In closer observation, parts of the paperclip were rusted while some were still intact. ]]> 2021-08-14 13:35:05 UTC https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1679014028 tanyixuan0105 https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1679466142 https://drive.google.com/file/d/1DKx-drmnIPKHRDWg9cK0ReJu9gWUeu-P/view?usp=drivesdk]]> 2021-08-15 14:11:11 UTC https://padlet.com/tanyixuan0105/g7iunbfxrkxwxz26/wish/1679466142